Ostroushko, O., and K. Kalinkin. “Effectiveness of the Program of Physical Rehabilitation for Persons With Gunshot Fractures of the Proximal Humerus”. Journal of Education, Health and Sport, vol. 7, no. 1, Jan. 2017, pp. 765-77, https://apcz.umk.pl/JEHS/article/view/6595.