1. Clinical Hospital of Pulmonary Diseases Iași, 700116 Iasi, Romania
2. Pulmonary Department, Faculty of General Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
3. Doctoral School, Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
4. Department of Surgery, Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
5. Clinic of Surgery (II), St. Spiridon Emergency Hospital, 700111 Iasi, Romania
6. Regional Institute of Oncology, 700483 Iasi, Romania