1. Department of Heart and Great Vessels “Attilio Reale”, Sapienza University, Viale del Policlinico 155, 00161 Rome, Italy
2. Respiratory Diseases Unit, “Sapienza” University, Rome, Italy
3. Department of Internal Medicine, Division of Cardiology, University of North Texas Health Science Center, Fort Worth, TX, USA
4. Anthea Hospital, GVM Care & Research, ES Health Science Foundation, Italy