For citations:

Popov A.A., Lesnyak O.M., Solodovnikov A.G., Fominyh M.L. Efficacy and safety of tramadol hydrochloride and fixed combination of tramadol with acetaminophen in the treatment of knee and hip osteoarthritis: systematic review. Rheumatology Science and Practice. 2007;45(3):46-53. (In Russ.) https://doi.org/10.14412/1995-4484-2007-688