1. Al Emadi Hospital, Department of Plastic and Reconstructive Surgery, Doha, Qatar
2. Institute for Pulmonary Diseases of Vojvodina, Sremska Kamenica, Serbia
3. University of Belgrade, Faculty of Medicine, Niko Miljanić Institute of Anatomy, Belgrade, Serbia
4. Foča University Hospital, Department of Pathology, Foča, Bosnia and Herzegovina
5. Priora International Medical Center, Department of Plastic and Reconstructive Surgery, Čepin, Croatia