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Glenn Thomas Clark, DDS, MS

TitleProfessor and Assistant Dean For Distance Education and Director of The Online Master of Science in Orofacial Pain Program
InstitutionUniversity of Southern California
DepartmentDentistry
AddressDEN B14 A
University Park Campus
Los Angeles CA 90089-0641
Phone+1 213 821 5298
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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. Munguia FM, Jang J, Salem M, Clark GT, Enciso R. Efficacy of Low-Level Laser Therapy in the Treatment of Temporomandibular Myofascial Pain: A Systematic Review and Meta-Analysis. J Oral Facial Pain Headache. 2018 Apr 25. PMID: 29697718.
      View in: PubMed
    2. Clark GT, Padilla M, Dionne R. Medication Treatment Efficacy and Chronic Orofacial Pain. Oral Maxillofac Surg Clin North Am. 2016 Aug; 28(3):409-21. PMID: 27475515.
      View in: PubMed
    3. Clark GT, Ram S. Orofacial Movement Disorders. Oral Maxillofac Surg Clin North Am. 2016 Aug; 28(3):397-407. PMID: 27475514.
      View in: PubMed
    4. Makihara E, Kawano T, Miyajima R, Masumi SI, Enciso R, Clark GT. Assessment of oral appliance for obstructive sleep apnea patients. Clin Exp Dent Res. 2016 Nov; 2(2):155-161. PMID: 29744162.
      View in: PubMed
    5. Salah S, Thomas L, Ram S, Clark GT, Enciso R. Systematic Review and Meta-analysis of the Efficacy of Oral Medications Compared with Placebo Treatment in the Management of Postherpetic Neuralgia. J Oral Facial Pain Headache. 2016 Summer; 30(3):255-66. PMID: 27472529.
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    6. Enciso R, Keaton J, Saleh N, Ahmadieh A, Clark GT, Sedghizadeh PP. Assessing the utility of serum C-telopeptide cross-link of type 1 collagen as a predictor of bisphosphonate-related osteonecrosis of the jaw: A systematic review and meta-analysis. J Am Dent Assoc. 2016 07; 147(7):551-560.e11. PMID: 27040417.
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    7. Shackleton T, Ram S, Black M, Ryder J, Clark GT, Enciso R. The efficacy of botulinum toxin for the treatment of trigeminal and postherpetic neuralgia: a systematic review with meta-analyses. Oral Surg Oral Med Oral Pathol Oral Radiol. 2016 Jul; 122(1):61-71. PMID: 27260275.
      View in: PubMed
    8. Lapidus D, Goldberg J, Hobbs EH, Ram S, Clark GT, Enciso R. Effect of premedication to provide analgesia as a supplement to inferior alveolar nerve block in patients with irreversible pulpitis. J Am Dent Assoc. 2016 06; 147(6):427-37. PMID: 26952243.
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    9. Sedghizadeh PP, Billington WD, Paxton D, Ebeed R, Mahabady S, Clark GT, Enciso R. Is p16-positive oropharyngeal squamous cell carcinoma associated with favorable prognosis? A systematic review and meta-analysis. Oral Oncol. 2016 Mar; 54:15-27. PMID: 26794879.
      View in: PubMed
    10. Karasneh JA, Al-Eryani K, Clark GT, Sedghizadeh PP. Modified protocol including topical minocycline in orabase to manage medication-related osteonecrosis of the jaw cases. J Oral Pathol Med. 2016 Oct; 45(9):718-720. PMID: 26750149.
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    11. Minakuchi H, Sogawa C, Miki H, Hara ES, Maekawa K, Sogawa N, Kitayama S, Matsuka Y, Clark GT, Kuboki T. Sleep bruxism frequency and platelet serotonin transporter activities in young adult subjects. Sleep Breath. 2016 Mar; 20(1):271-6. PMID: 26527205.
      View in: PubMed
    12. Clark G. Evidence-Based Pharmacologic Approaches for Chronic Orofacial Pain. J Calif Dent Assoc. 2015 Nov; 43(11):643-54. PMID: 26798881.
      View in: PubMed
    13. Shigemoto S, Shigeta Y, Nejima J, Ogawa T, Matsuka Y, Clark GT. Diagnosis and treatment for obstructive sleep apnea: Fundamental and clinical knowledge in obstructive sleep apnea. J Prosthodont Res. 2015 Jul; 59(3):161-71. PMID: 25944119.
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    14. Dalla-Bona D, Shackleton T, Clark G, Ram S. Unilateral ear fullness and temporary hearing loss diagnosed and successfully managed as a temporomandibular disorder: a case report. J Am Dent Assoc. 2015 Mar; 146(3):192-4. PMID: 25726347.
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    15. Minakuchi H, Sogawa C, Hara ES, Miki H, Maekawa K, Sogawa N, Kitayama S, Matsuka Y, Clark GT, Kuboki T. Comparison of platelet serotonin transporter activity in subjects with severe sleep bruxism and control. J Prosthodont Res. 2014 Oct; 58(4):217-22. PMID: 25127373.
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    16. Venturin JS, Durall PS, Enciso R, Clark GT, Mulligan R. Comparing methods of cultural competency training and assessment in a predoctoral dental course. J Dent Educ. 2013 Apr; 77(4):476-84. PMID: 23576593.
      View in: PubMed
    17. Shigeta Y, Ogawa T, Tomoko I, Clark GT, Enciso R. Soft palate length and upper airway relationship in OSA and non-OSA subjects. Tex Dent J. 2013 Mar; 130(3):203-11. PMID: 23734544.
      View in: PubMed
    18. Clark GT, Suri A, Enciso R. Autonomous virtual patients in dentistry: system accuracy and expert versus novice comparison. J Dent Educ. 2012 Oct; 76(10):1365-70. PMID: 23066136.
      View in: PubMed
    19. Enciso R, Shigeta Y, Nguyen M, Clark GT. Comparison of cone-beam computed tomography incidental findings between patients with moderate/severe obstructive sleep apnea and mild obstructive sleep apnea/healthy patients. Oral Surg Oral Med Oral Pathol Oral Radiol. 2012 Sep; 114(3):373-81. PMID: 22862979; PMCID: PMC3428237.
    20. Minakuchi H, Sakaguchi C, Hara ES, Maekawa K, Matsuka Y, Clark GT, Kuboki T. Multiple sleep bruxism data collected using a self-contained EMG detector/analyzer system in asymptomatic healthy subjects. Sleep Breath. 2012 Dec; 16(4):1069-72. PMID: 22278147.
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    21. Abe Y, Suganuma T, Ishii M, Yamamoto G, Gunji T, Clark GT, Tachikawa T, Kiuchi Y, Igarashi Y, Baba K. Association of genetic, psychological and behavioral factors with sleep bruxism in a Japanese population. J Sleep Res. 2012 Jun; 21(3):289-96. PMID: 22545912.
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    22. Samiee A, Sabzerou D, Edalatpajouh F, Clark GT, Ram S. Temporomandibular joint injection with corticosteroid and local anesthetic for limited mouth opening. J Oral Sci. 2011 Sep; 53(3):321-5. PMID: 21959659.
      View in: PubMed
    23. Haghparast N, Okubo M, Enciso R, Clark GT, Shuler C. Comparing student-generated learning needs with faculty objectives in PBL cases in dental education. J Dent Educ. 2011 Aug; 75(8):1092-7. PMID: 21828303.
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    24. Clark GT, Mulligan R, Baba K. Developing and providing an online (web-based) clinical research design course in Japan: lessons learned. J Prosthodont Res. 2011 Apr; 55(2):61-8. PMID: 21353661.
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    25. Shigeta Y, Ogawa T, Ando E, Clark GT, Enciso R. Influence of tongue/mandible volume ratio on oropharyngeal airway in Japanese male patients with obstructive sleep apnea. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011 Feb; 111(2):239-43. PMID: 21237441; PMCID: PMC3026324.
    26. Clark GT, Mulligan R. Fifteen common mistakes encountered in clinical research. J Prosthodont Res. 2011 Jan; 55(1):1-6. PMID: 21095178.
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    27. Chung JW, Enciso R, Levendowski DJ, Westbrook PR, Clark GT. Patients with positional versus nonpositional obstructive sleep apnea: a retrospective study of risk factors associated with apnea-hypopnea severity. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Nov; 110(5):605-10. PMID: 20955950.
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    28. Nagamatsu-Sakaguchi C, Maekawa K, Ono T, Yanagi Y, Minakuchi H, Miyawaki S, Asaumi J, Takano-Yamamoto T, Clark GT, Kuboki T. Test-retest reliability of MRI-based disk position diagnosis of the temporomandibular joint. Clin Oral Investig. 2012 Feb; 16(1):101-8. PMID: 20953807.
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    29. Takiguchi S, Maekawa K, Ono T, Sasai N, Kaji M, Clark GT, Kuboki T. Relationship between a chronically painful trapezius muscle and its metabolic state analyzed with PET/CT. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Jul; 110(1):54-61. PMID: 20610298.
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    30. Shintaku WH, Venturin JS, Langlais RP, Clark GT. Imaging modalities to access bony tumors and hyperplasic reactions of the temporomandibular joint. J Oral Maxillofac Surg. 2010 Aug; 68(8):1911-21. PMID: 20452115.
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    31. Choi JK, Hur YK, Lee JM, Clark GT. Effects of mandibular advancement on upper airway dimension and collapsibility in patients with obstructive sleep apnea using dynamic upper airway imaging during sleep. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 May; 109(5):712-9. PMID: 20303302.
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    32. Chung JW, Enciso R, Levendowski DJ, Morgan TD, Westbrook PR, Clark GT. Treatment outcomes of mandibular advancement devices in positional and nonpositional OSA patients. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 May; 109(5):724-31. PMID: 20299246; PMCID: PMC4190179.
    33. Venturin JS, Shintaku WH, Shigeta Y, Ogawa T, Le B, Clark GT. Temporomandibular joint condylar abnormality: evaluation, treatment planning, and surgical approach. J Oral Maxillofac Surg. 2010 May; 68(5):1189-96. PMID: 20156667.
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    34. Enciso R, Clark GT. Comparing the Berlin and the ARES questionnaire to identify patients with obstructive sleep apnea in a dental setting. Sleep Breath. 2011 Jan; 15(1):83-9. PMID: 20127186; PMCID: PMC2917515.
    35. Enciso R, Nguyen M, Shigeta Y, Ogawa T, Clark GT. Comparison of cone-beam CT parameters and sleep questionnaires in sleep apnea patients and control subjects. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Feb; 109(2):285-93. PMID: 20123412; PMCID: PMC2900776.
    36. Inoue E, Maekawa K, Minakuchi H, Nagamatsu-Sakaguchi C, Ono T, Matsuka Y, Clark GT, Kuboki T. The relationship between temporomandibular joint pathosis and muscle tenderness in the orofacial and neck/shoulder region. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Jan; 109(1):86-90. PMID: 20123380.
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    37. Shigeta Y, Ogawa T, Tomoko I, Clark GT, Enciso R. Soft palate length and upper airway relationship in OSA and non-OSA subjects. Sleep Breath. 2010 Dec; 14(4):353-8. PMID: 19997779; PMCID: PMC2891845.
    38. Ono T, Maekawa K, Sonoyama W, Kojima S, Tanaka T, Clark GT, Kuboki T. Gene expression profile of mouse masseter muscle after repetitive electrical stimulation. J Prosthodont Res. 2010 Jan; 54(1):36-41. PMID: 19819208.
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    39. Ram S, Seirawan H, Kumar SK, Clark GT. Prevalence and impact of sleep disorders and sleep habits in the United States. Sleep Breath. 2010 Feb; 14(1):63-70. PMID: 19629554.
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    40. Simmons MS, Clark GT. The potentially harmful medical consequences of untreated sleep-disordered breathing: the evidence supporting brain damage. J Am Dent Assoc. 2009 May; 140(5):536-42. PMID: 19411520.
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    41. Teruel A, Ram S, Kumar SK, Hariri S, Clark GT. Prevalence of hypertension in patients with trigeminal neuralgia. J Headache Pain. 2009 Jun; 10(3):199-201. PMID: 19277836; PMCID: PMC3451988.
    42. Ram S, Teruel A, Kumar SK, Clark G. Clinical characteristics and diagnosis of atypical odontalgia: implications for dentists. J Am Dent Assoc. 2009 Feb; 140(2):223-8. PMID: 19188419.
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    43. Clark GT, Baba K, McCreary CP. Predicting the outcome of a physical medicine treatment for temporomandibular disorder patients. J Orofac Pain. 2009; 23(3):221-9. PMID: 19639102.
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    44. Clark G. Top 60 medications used for orofacial pain treatment. J Calif Dent Assoc. 2008 Oct; 36(10):747-67. PMID: 19044096.
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    45. Shigeta Y, Ogawa T, Venturin J, Nguyen M, Clark GT, Enciso R. Gender- and age-based differences in computerized tomographic measurements of the orophaynx. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008 Oct; 106(4):563-70. PMID: 18602313; PMCID: PMC2621333.
    46. Nagamatsu-Sakaguchi C, Minakuchi H, Clark GT, Kuboki T. Relationship between the frequency of sleep bruxism and the prevalence of signs and symptoms of temporomandibular disorders in an adolescent population. Int J Prosthodont. 2008 Jul-Aug; 21(4):292-8. PMID: 18717084.
      View in: PubMed
    47. Shigeta Y, Enciso R, Ogawa T, Ikawa T, Clark GT. Cervical CT derived neck fat tissue distribution differences in Japanese males and females and its effect on retroglossal and retropalatal airway volume. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008 Aug; 106(2):275-84. PMID: 18554948; PMCID: PMC2536519.
    48. Clark GT. Classification, causation and treatment of masticatory myogenous pain and dysfunction. Oral Maxillofac Surg Clin North Am. 2008 May; 20(2):145-57, v. PMID: 18343321.
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    49. Shigeta Y, Enciso R, Ogawa T, Shintaku WH, Clark GT. Correlation between retroglossal airway size and body mass index in OSA and non-OSA patients using cone beam CT imaging. Sleep Breath. 2008 Nov; 12(4):347-52. PMID: 18446397.
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    50. Clark GT, Ram S. Orofacial pain and neurosensory disorders and dysfunction in cancer patients. Dent Clin North Am. 2008 Jan; 52(1):183-202, ix-x. PMID: 18154870.
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    51. Suarez P, Clark G. Oral conditions of 1,049 patients referred to a university-based oral medicine and orofacial pain center. Spec Care Dentist. 2007 Sep-Oct; 27(5):191-5. PMID: 17990478.
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    52. Itzhaki S, Dorchin H, Clark G, Lavie L, Lavie P, Pillar G. The effects of 1-year treatment with a herbst mandibular advancement splint on obstructive sleep apnea, oxidative stress, and endothelial function. Chest. 2007 Mar; 131(3):740-749. PMID: 17356088.
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    53. Suzuki K, Maekawa K, Minakuchi H, Yatani H, Clark GT, Matsuka Y, Kuboki T. Responses of the hypothalamic-pituitary-adrenal axis and pain threshold changes in the orofacial region upon cold pressor stimulation in normal volunteers. Arch Oral Biol. 2007 Aug; 52(8):797-802. PMID: 17321484.
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    54. Clark GT, Ram S. Four oral motor disorders: bruxism, dystonia, dyskinesia and drug-induced dystonic extrapyramidal reactions. Dent Clin North Am. 2007 Jan; 51(1):225-43, viii-ix. PMID: 17185068.
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    55. Clark GT, Stiles A, Lockerman LZ, Gross SG. A critical review of the use of botulinum toxin in orofacial pain disorders. Dent Clin North Am. 2007 Jan; 51(1):245-61, ix. PMID: 17185069.
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    56. Ogawa T, Enciso R, Shintaku WH, Clark GT. Evaluation of cross-section airway configuration of obstructive sleep apnea. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2007 Jan; 103(1):102-8. PMID: 17178502; PMCID: PMC1868407.
    57. Shintaku W, Enciso R, Broussard J, Clark GT. Diagnostic imaging for chronic orofacial pain, maxillofacial osseous and soft tissue pathology and temporomandibular disorders. J Calif Dent Assoc. 2006 Aug; 34(8):633-44. PMID: 16967673.
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    58. Clark GT. Persistent orodental pain, atypical odontalgia, and phantom tooth pain: when are they neuropathic disorders? J Calif Dent Assoc. 2006 Aug; 34(8):599-609. PMID: 16967670.
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    59. Suarez P, Clark GT. Burning mouth syndrome: an update on diagnosis and treatment methods. J Calif Dent Assoc. 2006 Aug; 34(8):611-22. PMID: 16967671.
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    60. Lotaif AC, Mitrirattanakul S, Clark GT. Orofacial muscle pain: new advances in concept and therapy. J Calif Dent Assoc. 2006 Aug; 34(8):625-30. PMID: 16967672.
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    61. Clark GT. Medical management of oral motor disorders: dystonia, dyskinesia and drug-induced dystonic extrapyramidal reactions. J Calif Dent Assoc. 2006 Aug; 34(8):657-67. PMID: 16967675.
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    62. Ram S, Kumar SK, Clark GT. Using oral medications, infusions and injections for differential diagnosis of orofacial pain. J Calif Dent Assoc. 2006 Aug; 34(8):645-54. PMID: 16967674.
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    63. Undt G, Murakami K, Clark GT, Ploder O, Dem A, Lang T, Wiesinger GF. Cross-cultural adaptation of the JPF-Questionnaire for German-speaking patients with functional temporomandibular joint disorders. J Craniomaxillofac Surg. 2006 Jun; 34(4):226-33. PMID: 16621587.
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    64. Clark GT, Minakuchi H, Lotaif AC. Orofacial pain and sensory disorders in the elderly. Dent Clin North Am. 2005 Apr; 49(2):343-62. PMID: 15755409.
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    65. Ogawa T, Enciso R, Memon A, Mah JK, Clark GT. Evaluation of 3D airway imaging of obstructive sleep apnea with cone-beam computed tomography. Stud Health Technol Inform. 2005; 111:365-8. PMID: 15718761.
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    66. Baba K, Haketa T, Sasaki Y, Ohyama T, Clark GT. Association between masseter muscle activity levels recorded during sleep and signs and symptoms of temporomandibular disorders in healthy young adults. J Orofac Pain. 2005; 19(3):226-31. PMID: 16106716.
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    67. Baba K, Haketa T, Clark GT, Ohyama T. Does tooth wear status predict ongoing sleep bruxism in 30-year-old Japanese subjects? Int J Prosthodont. 2004 Jan-Feb; 17(1):39-44. PMID: 15008231.
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    68. Clark GT. The management of oromandibular motor disorders and facial spasms with injections of botulinum toxin. Phys Med Rehabil Clin N Am. 2003 Nov; 14(4):727-48. PMID: 14580034.
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    69. Clark GT. Web-based continuing dental education in California. J Calif Dent Assoc. 2003 Aug; 31(8):611-9. PMID: 13677403.
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    70. Clark G, Simmons M. Occlusal dysesthesia and temporomandibular disorders: is there a link? Alpha Omegan. 2003 Jul; 96(2):33-9. PMID: 12955780.
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    71. Nishigawa K, Kondo K, Takeuchi H, Clark GT. Contingent electrical lip stimulation for sleep bruxism: a pilot study. J Prosthet Dent. 2003 Apr; 89(4):412-7. PMID: 12690356.
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    72. Maekawa K, Twe C, Lotaif A, Chiappelli F, Clark GT. Function of beta-adrenergic receptors on mononuclear cells in female patients with fibromyalgia. J Rheumatol. 2003 Feb; 30(2):364-8. PMID: 12563697.
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    73. Maekawa K, Kuboki T, Inoue E, Inoue-Minakuchi M, Suzuki K, Yatani H, Clark GT. Function of beta 2-adrenergic receptors in chronic localized myalgia. J Orofac Pain. 2003; 17(2):140-4. PMID: 12836502.
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    74. Baba K, Clark GT, Watanabe T, Ohyama T. Bruxism force detection by a piezoelectric film-based recording device in sleeping humans. J Orofac Pain. 2003; 17(1):58-64. PMID: 12756932.
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    75. Watanabe T, Ichikawa K, Clark GT. Bruxism levels and daily behaviors: 3 weeks of measurement and correlation. J Orofac Pain. 2003; 17(1):65-73. PMID: 12756933.
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    76. Maekawa K, Clark GT, Kuboki T. Intramuscular hypoperfusion, adrenergic receptors, and chronic muscle pain. J Pain. 2002 Aug; 3(4):251-60. PMID: 14622746.
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    77. Aizawa S, Tsukiyama Y, Koyano K, Clark GT. Reperfusion response changes induced by repeated, sustained contractions in normal human masseter muscle. Arch Oral Biol. 2002 Jul; 47(7):537-43. PMID: 12208078.
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    78. Choi JK, Goldman M, Koyal S, Clark G. Effect of Jaw and Head Position on Airway Resistance in Obstructive Sleep Apnea. Sleep Breath. 2000; 4(4):163-168. PMID: 11894202.
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