1 Department of Medicine, University of Udine and Azienda Sanitaria Universitaria Integrata, Udine, Italy. [email protected].
2 Clinica Malattie Infettive, Azienda Sanitaria Universitaria Integrata di Udine, Presidio Ospedaliero Universitario Santa Maria della Misericordia, Piazzale Santa Maria della Misericordia 15, 33100, Udine, Italy. [email protected].
3 3rd Department of Medicine, School of Medicine, Sotiria General Hospital of Athens, Athens National and Kapodistrian University, Athens, Greece.
4 Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, St. Louis, MO, USA.