1. National University of Trujillo School of Medicine, , Av. Roma 338, Trujillo 13011, Peru
2. Eastern Virginia Medical School Department of Internal Medicine, Division of Pulmonary Disease and Critical Care, , 825 Fairfax Ave, Norfolk, VA 23507, United States
3. Universidad Privada Antenor Orrego School of Medicine, , Av. America Sur 3145, Trujillo 13008, Peru
4. Eastern Virginia Medical School Department of Surgery, , 825 Fairfax Ave, Norfolk, VA 23507, United States
5. Sentara Medical Group Pulmonary, Critical Care, and Sleep Specialists, , 600 Gresham Dr, Norfolk VA 23507, United States