Excessive sleepiness and selected aspects of functioning and the quality of life of patients suffering from obstructive sleep apnoea - Mostowik, Lidia; Padykuła, Marlena; Sułkowska, Joanna; Kuźmicz, Ilona; Kawalec-Kajstura, Ewa (Nursing Problems / Problemy Pielęgniarstwa, 2020)