Meta-Analysis of the Related Nutritional Supplements Dimethyl Sulfoxide and Methylsulfonylmethane in the Treatment of Osteoarthritis of the Knee

Table 1

Search strategy for DMSO.

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(1) Explode “osteoarthritis”/all subheadings

(2) Explode “degenerative arthritis”/all subheadings

(3) Osteoarthr$

(4) (1)–(3)

(5) Dimethyl sulfoxide

(6) DMSO

(7) (5)–(6)

(8) Clinical trial

(9) Double blind

(10) Single blind

(11) RCT

(12) Placebo

(13) Randomised

(14) Comparative study

(15) Evaluation study

(16) Control

(17) 8 OR 9 OR 10 OR 11 OR 12 OR 13 OR 14 OR 15

(18) 4 AND 7 AND 17

(19) LIMIT 18 to HUMAN

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