Hajsadeghi, Shokoufeh Halena, Grzegorz Halena, Grzegorz, Department of Cardiac and Vascular Surgery, Medical University in Gdańsk, Poland (Poland) Halena, Grzegorz Halena, Grzegorz Wojciech Hamano, Tadanori Hamdioglu, Yalcin Hamera, Agnieszka, Student Scientific Group, Chair and Clinic of Vascular and Internal Diseases, Faculty of Health Sciences, Ludwik Rydygier Hammer, Piotr, Hammermed, Cook Medical Consultant, Warsaw, Poland Hammer, Piotr (Poland) Hamzaoui, Mourad, Pediatric surgery department “A”.children hospital.Tunis. Manar university Tunis tunisia Hanzawa, Kazuhiko Hapka, Lukasz, Department of General Surgery, Specialist Hospital in Chojnice, Poland Hapka, Lukasz haroun, riham Harsoyo, Primasitha Maharany Hartwich, Jadwiga Hausmann, Dorothee Hauzer, Willy Hawro, Piotr Hayashida, Milena Heczko, Piotr. B. Hegazy, Marwa Hendiger, Włodzimierz Herijgers, Paul