Authors
Heltty Heltty
Faculty of Nursing, Medical Surgical, University of Indonesia, Depok, Indonesia
Ratna Sitorus
Faculty of Nursing, Medical Surgical, University of Indonesia, Depok, Indonesia
Evi Martha
Faculty of Public Health, University of Indonesia, Depok, Indonesia
Nury Nusdwinuringtyas
Faculty of Medicine, University of Indonesia, Depok, Indonesia