oleh Handayani, Handayani; Medical Faculty, University of Riau , Bashiruddin, Jenny; Faculty of Medicine University of Indonesia, Jakarta , Wawolumaya, Corrie; Faculty of Medicine University of Indonesia, Jakarta

oleh Darnindro, Nikko; Faculty of Medicine University of Indonesia , Jasin, Madeleine R; Faculty of Medicine University of Indonesia , Martina, Martina; Faculty of Medicine University of Indonesia , Heryanto, Lydia; Faculty of Medicine University of Indonesia , Ardiansyah, Doli; Faculty of Medicine University of Indonesia , Tambunan, Made; Faculty of Medicine University of Indonesia , Heriyanto, Paulus; Faculty of Medicine University of Indonesia , Wawolumaya, Corrie; Faculty of Medicine University of Indonesia , Kayika, IPG; Faculty of Medicine University of Indonesia