**Upper Airway Resistance Syndrome – A Twenty-Five Years Experience**

Felix del Campo Matías1,

Tomas Ruiz Albi2 and Carlos Zamarrón Sanz3

*1Division of Respiratory Medicine, Hospital Universitario Rio Hortega, Departament of Medicine, Universidad de Valladolid,Valladolid 2Division of Respiratory Medicine, Hospital Universitario Rio Hortega, Valladolid, 3Division of Respiratory Medicine Hospital Clínico Universitario de Santiago de Compostela, Santiago de Compostela, Spain* 
