@Article{612795, author = "Paulina Ucieklak-Jeż", title = "Demographically Aging Society in the Health Care System in Poland ", year = 2013, volume = 7, number = , journal = Prace Naukowe Akademii im. Jana Długosza w Częstochowie. Pragmata tes Oikonomias, pages = s. 29-38, }