PRZYŁUSKA-FISZER, A.; WÓJCIK, A. Methodological problems connected with scientific research on patients undergoing palliative care. Diametros, [S. l.], n. 19, p. 119–131, 2009. DOI: 10.13153/diam.19.2009.336. Disponível em: https://diametros.uj.edu.pl/diametros/article/view/336. Acesso em: 3 aug. 2021.