Nipanikar, Sanjay U An open label, prospective, clinical study on a polyherbal formulation in osteoarthritis of knee. [electronic resource] - Journal of Ayurveda and integrative medicine Jan 2013 - 33-9 p. digital Publication Type: Journal Article ISSN: 0975-9476 Standard No.: 10.4103/0975-9476.109549 doi