1. General Surgery Resident, Departement of Surgery, Faculty of Medicine, University of Sam Ratulangi, Manado, Indonesia
2. Departement of Vascular Surgery, Faculty of Medicine, University of Sam Ratulangi, Manado
3. Departement of Vascular Surgery, Faculty of Medicine, University of Sam Ratulangi, Manado, Indonesia
4. Departement of Public Health Sciences, Faculty of Medicine, University of Sam Ratulangi, Manado, Indonesia