Maccagno, A Double-blind controlled clinical trial of oral S-adenosylmethionine versus piroxicam in knee osteoarthritis. [electronic resource] - The American journal of medicine Nov 1987 - 72-7 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0002-9343 Standard No.: 10.1016/0002-9343(87)90855-2 doi Subjects--Topical Terms: AgedAnti-Inflammatory Agents, Non-Steroidal--therapeutic useClinical Trials as TopicDouble-Blind MethodFemaleHumansKnee JointMaleMiddle AgedOsteoarthritis--drug therapyPiroxicam--adverse effectsRandom AllocationS-Adenosylmethionine--adverse effects