1. Berkow PK, Fletcher AJ, Beers MH (eds). The Merck Manual of diagnosis and therapy, 16th Ed. Rahway, NJ: Merck Research Laboratories, 1992;1367-8.
2. Kneer W, Kuhnau S, Bias P, et al. Dimethylsulfoxide (DMSO) gel in treatment of acute tendopathies. A multicenter, placebo-controlled, randomized study. Fortschritte Med 1994;112:142-6 [in German].
3. Lockie LM, Norcross BM. A clinical study on the effects of dimethyl sulfoxide in 103 patients with acute and chronic musculoskeletal injuries and inflammations. Ann N Y Acad Sci 1967;141:599-602.
4. Steinberg A. The employment of dimethyl sulfoxide as an antiinflammatory agent and steroid-transporter in diversified clinical diseases. Ann N Y Acad Sci 1967;141:532-50.
5. Brown JH, Wood DC, Jacob SW. Current status of dimethyl sulfoxide (DMSO). A double blind evaluation of its therapeutic value in acute strains, sprains, bursitis and tendonitis. Bull Soc Int Chir 1972;31:561-6.
6. Brown JH. A double blind study-DMSO for acute injuries and inflammations compared to accepted standard therapy. Curr Ther Res Clin Exp 1971;13:536-40.
7. Percy EC, Carson JD. The use of DMSO in tennis elbow and rotator cuff tendonitis: a double-blind study. Med Sci Sports Exerc 1981;13:215-9.
8. Seligman B. Bromelain: an anti-inflammatory agent. Angiology 1962;13:508-10.
9. Cirelli MG. Treatment of inflammation and edema with bromelain. Delaware Med J 1962;34:159-67.
10. Masson M. Bromelain in the treatment of blunt injuries to the musculoskeletal system. A case observation study by an orthopedic surgeon in private practice. Fortschr Med 1995;113:303-6.
11. Miller JM. The absorption of proteolytic enzymes from the gastrointestinal tract. Clin Med 1968;75:35-42 [review].
12. Castell JV, Friedrich G, Kuhn CS, et al. Intestinal absorption of undegraded proteins in men: presence of bromelain in plasma after oral intake. Am J Physiol 1997;273:G139-46.
13. Cirelli MG. Five years experience with bromelains in therapy of edema and inflammation in postoperative tissue reaction, skin infections and trauma. Clin Med 1967;74(6):55-9.
14. Trickett P. Proteolytic enzymes in treatment of athletic injuries. Appl Ther 1964;6:647-52.
15. Sweeny FJ. Treatment of athletic injuries with an oral proteolytic enzyme. Med Times 1963:91:765.
16. Boyne PS, Medhurst H. Oral anti-inflammatory enzyme therapy in injuries in professional footballers. Practitioner 1967;198:543-6.
17. Deitrick RE. Oral proteolytic enzymes in the treatment of athletic injuries: A double-blind study. Pennsylvania Med J 1965;Oct:35-7.
18. Holt HT. Carica papaya as ancillary therapy for athletic injuries. Curr Ther Res 1969;11:621-4.
19. Rathgeber WF. The use of proteolytic enzymes (Chymoral) in sporting injuries. S Afr Med J 1971;45:181-3.
20. Buck JE, Phillips N. Trial of Chymoral in professional footballers. Br J Clin Pract 1970;24:375-7.
21. Kleinhenz J, Streitberger K, Windeler J, et al. Randomised clinical trial comparing the effects of acupuncture and a newly designed placebo needle in rotator cuff tendinitis. Pain 1999;83:235-41.
22. Haker E, Lundeberg T. Acupuncture treatment in epicondylalgia: a comparative study of two acupuncture techniques. Clin J Pain 1990;6:221-6.
23. Haker E, Lundeberg T. Laser treatment applied to acupuncture points in lateral humeral epicondylalgia. A double-blind study. Pain 1990;43:243-7.
24. Ebenbichler GR, Erdogmus CB, Resch KL, et al. Ultrasound therapy for calcific tendonitis of the shoulder. N Engl J Med 1999;340:1533-8.
25. van der Windt DA, van der Heijden GJ, van den Berg SG, et al. Ultrasound therapy for musculoskeletal disorders: a systematic review. Pain 1999;81:257-71.
26. Klaiman MD, Shrader JA, Danoff JV, et al. Phonophoresis versus ultrasound in the treatment of common musculoskeletal conditions. Med Sci Sports Exerc 1998;30:1349-55.
27. Kaada B. Treatment of peritendinitis calcarea of the shoulder by transcutaneous nerve stimulation. Acupunct Electrother Res 1984;9:115-25.
28. Saveriano G, Lionetti P, Maiolo F, Battisti E. Our experience in the use of a new objective pain measuring system in rheumarthropatic subjects treated with transcutaneous electroanalgesia and ultrasound. Minerva Med 1986;77:745-52 [in Italian].
29. Latko WA. Armstrong TJ, Franzblau A, et al. Cross-sectional study of the relationship between repetitive work and the prevalence of upper limb musculoskeletal disorders. Am J Ind Med 1999;36:248-59.
30. Piligian G, Herbert R, Hearns M, et al. Evaluation and management of chronic work-related musculoskeletal disorders of the distal upper extremity. Am J Ind Med 2000;37:75-93.
31. Stock SR. Workplace ergonomic factors and the development of musculoskeletal disorders of the neck and upper limbs: a meta-analysis. Am J Ind Med 1991;19:87-107.
32. Tittiranonda P, Rempel D, Armstrong T, Burastero S. Effect of four computer keyboards in computer users with upper extremity musculoskeletal disorders. Am J Ind Med 1999;35:647-61.