Yudhistina, Karima , Faculty of Medicine Universitas Indonesia – dr. Cipto Mangunkusumo General Hospital. Jakarta, Indonesia Yulhasri, Yulhasri, Faculty of Medicine, Universitas Indonesia Yunita, Ulfi Rahma, Faculty of Medicine, Universitas Indonesia – Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia Yusra, Yusra, Universitas Indonesia Yustikarani, Dhevinia, University of Indonesia