Chi-Hang Lee1, Ferran Barbé2. 1. Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore. 2. Group of Translational Research in Respiratory Medicine, IRBLleida, Lleida 25198, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, Madrid, Spain. Electronic address: febarbe.lleida.ics@gencat.cat.