1. Pulmonary Department‐Oncology Unit``G. Papanikolaou`` General HospitalAristotle University of ThessalonikiThessalonikiGreece
2. 7th Respiratory Medicine Department and Asthma CenterAthens Chest Hospital ‘Sotiria’AthensGreece
3. Department of Respiratory and Critical Care MedicineChanghai Hospital/First Affiliated Hospital of the Secondary Military Medical UniversityShanghaiChina
4. Department of Interventional PneumologyRuhrlandklinikUniversity Hospital EssenUniversity of Essen‐DuisburgEssenGermany
5. Second Pulmonary Clinic‘Sotiria’ Chest Diseases Hospital11527AthensGreece
6. Medical Clinic I“Fuerth” HospitalUniversity of ErlangenFuerthGermany