Health literacy levels and their sociodemographic, family, and health predictors among primary health care patients in urban and rural areas: a cross-sectional study - Barbara Niedorys-Karczmarczyk; Grzegorz Józef Nowicki; Agnieszka Chrzan-Rodak; Grażyna Nowak-Starz; Barbara Janina Ślusarska (Studia Medyczne, 2024)