1. Neonatology Working Group, Harapan Kita Women and Children Hospital, Jakarta, Indonesia
2. Department of Epidemiology, University of Indonesia School of Public Health, Depok, Indonesia
3. Department of Pediatrics, Dr. Kariadi Hospital, Diponegoro University, Semarang, Indonesia
4. Department of Ophthalmology, Cipto Mangunkusumo Hospital, University of Indonesia, Jakarta, Indonesia
5. Department of Pediatrics, Beatrix Children’s Hospital, University Medical Center Groningen, the Netherlands