1. Surgical Oncology Division, Department of Surgery, Faculty of Medicine , Universitas Indonesia , Cipto Mangunkusumo Hospital , Jakarta , Indonesia
2. Department of Surgery, Faculty of Medicine , Universitas Indonesia , Cipto Mangunkusumo Hospital , Jakarta , Indonesia
3. Department of Anatomic Pathology, Faculty of Medicine , Universitas Indonesia , Cipto Mangunkusumo Hospital , Jakarta , Indonesia
4. Department of Community Medicine, Faculty of Medicine , Universitas Indonesia , Jakarta , Indonesia