Devil's claw (Harpagophytum procumbens DC) References
Chantre P, Cappelaere A, Leblan D, et al. Efficacy and tolerance of Harpagophytum procumbens versus diacerhein in treatment of osteoarthritis. Phytomedicine 2000;7(3):177-183.
Chrubasik S, Model A, Black A, et al. A randomized double-blind...
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