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;

Evaluation of the Impact of Body Position on Primary Central Sleep Apnea Syndrome Burcu Oktay Arslan; Zeynep Zeren Ucar Hosgor; Selim Ekinci; Isil Cetinkol;