1 University of Padua School of Medicine, Padua, Italy; Royal Brompton Hospital, Royal Brompton and Harefield National Health Service Foundation Trust, London, United Kingdom.
2 School of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy; Istituto Auxologico Italiano, IRCCS, Milan, Italy.
3 University of Padua School of Medicine, Padua, Italy; Istituto Auxologico Italiano, IRCCS, Milan, Italy.