Natural history of idiopathic pulmonary fibrosis: Are slowly progressive and rapidly progressive really steady conditions?
Elisabetta Balestro, Emanuela Rossi, Ariel Floriani, Claudia Rinaldo, Francesca Lunardi, Monica Loy, Federico Rea, Manuel Cosio, Marina Saetta, Fiorella Calabrese
European Respiratory Journal 2012 40: P3638; DOI: