Chamchan, UWaikakul, SPukanchana-Mo-Rakote, C2009-05-272009-05-271989-03-01Chamchan U, Waikakul S, Pukanchana-Mo-Rakote C. Clinical efficacy of glycosaminoglycan polysulfate for the treatment of osteoarthritis of the knee joint: a double blind controlled study. Journal of the Medical Association of Thailand. 1989 Mar; 72(3): 123-8http://imsear.searo.who.int/handle/123456789/42108Chotmaihet Thangphaet.The investigator could not show that administration of glycosaminoglycan polysulfate twice a week, one intra-articular and one intra-muscular injections, was useful for osteoarthritis (stage II) of the knee joint.engAgedClinical Trials as TopicDouble-Blind MethodFemaleGlycosaminoglycans --administration & dosageHumansKnee JointMaleMiddle AgedOsteoarthritis --drug therapyRandom AllocationClinical Trial