Oliwia Sójkowska-Sławińska, Tobiasz Sławiński, Anna Leśniewska, Patryk Macuk, and Natalia Rutecka, “POLYSOMNOGRAPHY VERSUS PORTABLE DEVICES AND MOBILE APPLICATIONS IN THE DIAGNOSIS OF OBSTRUCTIVE SLEEP APNEA: A NARRATIVE REVIEW OF CURRENT EVIDENCE”, IJITSS, vol. 3, no. 3(47), Sep. 2025.