For citations:

Sycheva A.S., Tsaregorodtsev S.V., Naumov A.V., Vertkin A.L. Study of efficiency of chondroitin-sulfate parenteral preparation in the therapy of recurrent chronic pain under osteoarthritis of knee-joints in comorbid patients. Lechaschi Vrach. 2018;(7):25. (In Russ.)