1 Cardiac Surgery Department, Central University Hospital of Asturias, Calle del Hospital Universitario Central de Asturias, 33011, Oviedo, Spain. Electronic address: diazmendezro@gmail.com.
2 Cardiac Surgery Department, Central University Hospital of Asturias, Calle del Hospital Universitario Central de Asturias, 33011, Oviedo, Spain.