Sjarkowi, Anissa Syafitri, Faculty of Medicine, , Universitas Indonesia, Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia Soebardi, Soeharko, Faculty of Medicine Universitas Indonesia Cipto Mangunkusumo General Hospital Sofro, Muchlis Ahsan Udji, dr.Kariadi Central Hospital, Semarang Sonia, Steffi, Faculty of Medicine University of Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia Stefani, Shiela, Universitas Indonesia Subagio, Hertanto Wahyu, Medical Faculty Diponegoro University, Semarang dr. Kariadi Central Hospital, Semarang Suciati, Tri, Faculty of Medicine, Sriwijaya University Sudarma, Verawati, Fakultas Kedokteran Universitas Trisakti Sudarma, Verawati, Trisakti University Sudarmanto, Bambang, Faculty of Medicine, Universitas Diponegoro, Dr. Kariadi General Hospital