1. Department of Anatomy, Histology, and Embryology, Semmelweis University, Tuzolto St. 58, 1094 Budapest, Hungary
2. Translational Medicine Institute, Semmelweis University, 1094 Budapest, Hungary
3. Department of Thoracic Surgery, Guy’s Hospital, London SE1 9RT, UK
4. National Korányi Institute of Pulmonology, Pihenő út 1-3, 1121 Budapest, Hungary