A training workshop regarding the research project of "the 4-year-old monitoring and evaluation of network data registry system was held among 7 neonatal intensive care units of Tehran University of Medical Sciences hospitals" for Arash, Bahrami, Shariati, Moheb, Children's Medical Center and Najmieh hospitals. Dr. Nairi, head of maternal, fetal and neonatal and breastfeeding research centers, Dr. Shariat, research deputy of Maternal, Fetal and Neonatal Research Center, responsible researchers, the system manager and the mentioned hospitals representatives participated in Maternal, Fetal and Neonatal Research Center in August 8, 2017.