Demczyszak, Iwona, Natalia Kuciel, Edyta Sutkowska, Małgorzata Fortuna, and Jarosław Nakiewicz. 2019. “Comparison of Effectiveness of Selected Physical Modalities in Patients With Rotator Cuff Injury”. Journal of Education, Health and Sport 9 (6):470-77. https://apcz.umk.pl/JEHS/article/view/7065.