Georgiev, Georgi, Tsvetoslav Georgiev, Rumen Stoilov, and Mariana Ivanova. 2019. “Opportunities and Place of Physical Therapy in the Complex Treatment of Osteoarthritis”. Revmatologiia (Bulgaria) 27 (3), 66-76. https://doi.org/10.35465/27.3.2019.pp66-76.