Faculty of Medicine, Department of Surgery Cipto, Mangunkusumo General Hospital, Universitas Indonesia, Jakarta, Indonesia
Tamba, R.P., Faculty of Medicine, Department of Surgery Cipto, Mangunkusumo General Hospital, Universitas Indonesia, Jakarta, Indonesia; Moenadjat, Y., Faculty of Medicine, Department of Surgery Cipto, Mangunkusumo General Hospital, Universitas Indonesia, Jakarta, Indonesia