1. Community and Family Medicine Department, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
2. Public Health Department, Faculty of Medicine, Universitas Padjajaran, West Java, Indonesia
3. Nursing Study Program, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
4. Health Pediatric Department, Faculty of Medicine, Universitas Padjajaran, Indonesia