1 Department of Cardiology, Hospital Nuestra Señora de Candelaria, Tenerife, Spain; Phd Student Epidemiology and Public Health program (interuniversity) University Rey Juan Carlos, Madrid, Spain. Electronic address: luca.vannini84@gmail.com.
2 Department of Cardiology, Hospital Nuestra Señora de Candelaria, Tenerife, Spain.
3 Department of Pneumology, Hospital Nuestra Señora de Candelaria, Tenerife, Spain.