Povoroznyuk, V., A. Musiienko, N. Zaverukha, and A. Tkachuk. “Efficacy and Safety of Ketoprofen Gel Treatment in Patients With Low Back Pain”. PAIN, JOINTS, SPINE, vol. 11, no. 1, Apr. 2021, pp. 28-34, doi:10.22141/2224-1507.11.1.2021.226906.