1. Faculty of Medicine, Pelita Harapan University , Tangerang , Indonesia
2. Department of Surgery, Faculty of Medicine, Pelita Harapan University, Siloam General Hospital , Tangerang , Indonesia
3. Department of Pathology Anatomy, Faculty of Medicine, Pelita Harapan University, Siloam General Hospital , Tangerang , Indonesia
4. Division of Oncology, Department of Surgery, Faculty of Medicine, Pelita Harapan University, Siloam General Hospital , Tangerang , Indonesia