1. Nursing Care Research Center (NCRC), School of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran
2. Ophthalmic Epidemiology Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
3. Instructor of Nursing, Pediatric Department, School of Nursing and Midwifery, Qazvin University of Medical Sciences, Qazvin, Iran
4. Pediatric Gastroenterology, Hepatology, and Nutrition Research Center, Research Institute for Children’s Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran