Chras GI, Alchanatis M, Roussos C, Manolessou A, Koulouris NG. Negative Expiratory Pressure (NEP) Technique and Anthropometric Derived Indices as Surrogate Markers for Predicting Obstructive Sleep Apnea Syndrome (OSAS). Glob. J. Respir. Care [Internet]. 2017 Feb. 27 [cited 2025 Mar. 16];4:1-15. Available from: https://savvysciencepublishers.com/index.php/gjrc/article/view/119