Drozd, M., J. Czarnota, M. Dobrzyński, T. Skubel, D. Sokół, I. Dudek, and H. Piecewicz-Szczęsna. “Impact of Oral Isotretinoin Therapy on Musculoskeletal System and Physical Activity in Patients With Acne”. Journal of Education, Health and Sport, vol. 10, no. 8, Aug. 2020, pp. 372-8, doi:10.12775/JEHS.2020.10.08.045.