What has the ESADA Registry Contributed to the Current OSA Knowledge? Andras Bikov; Stefan Mihaicuta;

Respiratory Center Function and Its Impact in Obesity Hypoventilation Syndrome Treatment Inés Ruiz Álvarez; Ramón Fernández Álvarez; Gemma Rubinos Cuadrado; María José Vázquez López; Marta García Clemente;

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;