Lie, H., Department of Surgery, Faculty of Medicine, Pelita Harapan University, Banten, Tangerang, Indonesia; Caesarini, E.F., Department of Surgery, Faculty of Medicine, Pelita Harapan University, Banten, Tangerang, Indonesia; Purnama, A.A., Department of Surgery, Faculty of Medicine, Pelita Harapan University, Banten, Tangerang, Indonesia; Irawan, A., Department of Surgery, Faculty of Medicine, Pelita Harapan University, Banten, Tangerang, Indonesia; Sudirman, T., Department of Surgery, Faculty of Medicine, Pelita Harapan University, Banten, Tangerang, Indonesia; Jeo, W.S., Division of Digestive Surgery, Department of General Surgery, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Budiono, B.P., Division of Digestive Surgery, Department of General Surgery, Faculty of Medicine, Diponegoro University, Jawa Tengah, Semarang, Indonesia; Prabowo, E., Division of Digestive Surgery, Department of General Surgery, Faculty of Medicine, Diponegoro University, Jawa Tengah, Semarang, Indonesia; Rivai, M.I., Division of Digestive Surgery, Department of General Surgery, Faculty of Medicine, Andalas University, Sumatera Barat, Padang, Indonesia; Sitepu, R.K., Division of Digestive Surgery, Department of Surgery, Siloam Hospitals Lippo Cikarang, Jawa Barat, Bekasi, Indonesia