1 Academic Centre of Excellence for Interstitial Lung Diseases and Sarcoidosis, Dept of Respiratory Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
2 Academic Centre of Excellence for Interstitial Lung Diseases and Sarcoidosis, Dept of Respiratory Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands m.wijsenbeek-lourens@erasmusmc.nl.