Skorupska-Król, Agnieszka, Lidia Pejas-Grzybek, and Iwona Oskędra. “Depression and Its Severity Among Patients With Multiple Sclerosis”. The Journal of Neurological and Neurosurgical Nursing 3, no. 4 (June 28, 2014): 169–174. Accessed July 27, 2024. https://apcz.umk.pl/PNIN/article/view/38721.