Ryczkowski, Aleksander, Kaja Karakuła, and Ewa Rudnicka-Drożak. “Comorbid Insomnia and Sleep Apnea (COMISA) – a Real Problem for Psychiatrists, Pulmonologists, and Primary Care Physicians”. Current Problems of Psychiatry 24 (April 21, 2023): 87–96. Accessed August 2, 2025. https://czasopisma.umlub.pl/cpp/article/view/985.