Budnik, Marta, Anna Galikowska, Izabela Marzec, Dominika Balcerak, Edyta Kobus, and Zuzanna Posieczek. 2017. “Selected Aspects of Nursing Care for an Elderly Patient With Chronic Obstructive Pulmonary Disease”. Journal of Education, Health and Sport 7 (6):34-44. https://apcz.umk.pl/JEHS/article/view/4501.