Effectiveness of CPAP vs. Noninvasive Ventilation Based on Disease Severity in Obesity Hypoventilation Syndrome and Concomitant Severe Obstructive Sleep Apnea Juan F. Masa; Iván D. Benítez; Maria Á. Sánchez-Quiroga; Francisco J. Gomez de Terreros; Jaime Corral; Auxiliadora Romero; Candela Caballero-Eraso; Estrella Ordax-Carbajo; Maria F. Troncoso; Mónica González; Soledad López-Martín; José M. Marin; Sergi Martí; Trinidad Díaz-Cambriles; Eusebi Chiner; Carlos Egea; Javier Barca; Francisco J. Vázquez-Polo; Miguel A. Negrín; María Martel-Escobar; Ferrán Barbé; Babak Mokhlesi;

Defining the Heterogeneity of Sleep Apnea Syndrome: A Cluster Analysis With Implications for Patient Management Sofía Romero-Peralta; Francisco García-Rio; Pilar Resano Barrio; Esther Viejo-Ayuso; Jose Luis Izquierdo; Rodrigo Sabroso; Jorge Castelao; Jesús Fernández Francés; Olga Mediano;

Development and Validation of the OSA-CPAP Perceived Competence Evaluation Interview David Rudilla; Laura Galiana; Pedro Landete; Enrique Zamora; Inés Vergara; Amparo Oliver; Ana Román; Julio Ancochea;