Pavelka K,Gatterova J,Olejarova M,Machacek S,Giacovelli G,Rovati LC. Glucosamine sulfate use and delay of progression of knee osteoarthritis: a 3-year, randomized, placebo-controlled, double-blind study. Arch Intern Med 2002;162(18):2113-2123.

PubMed ID: 12374520