POP, T.; PRZYSADA, G.; ŚWIDER, B. Disability degree of medical personnel measured by Oswestry Questionnaire. European Journal of Clinical and Experimental Medicine, [S. l.], v. 6, n. 2, p. 135–141, 2008. Disponível em: https://journals.ur.edu.pl/ejcem/article/view/13253. Acesso em: 11 jul. 2026.