[1] Univ Modena & Reggio Emilia, Dept Med & Surg Sci, Resp Dis Unit, Univ Hosp Modena, Modena, Italy
[2] Univ Modena & Reggio Emilia, Ctr Rare Lung Dis, Modena, Italy
[3] Claude Bernard Univ Lyon 1, Hosp Civils Lyon, Louis Pradel Hosp, Natl Reference Ctr Rare Pulm Dis, Lyon, France
[4] Hosp Civils Lyon, Louis Pradel Hosp, Natl Reference Ctr Rare Pulm Dis, Lyon, France