1Department of Embryology; 3Department of Health, Golestan University of Medical Sciences, Gorgan, Islamic Republic of Iran (Correspondence to M.J. Golalipour: mjgolalipour@yahoo.com). 2Department of Paediatrics, Babol University of Medical Sciences, Babol, Islamic Republic of Iran. ABSTRACT This study recorded the rate of congenital malformations in 10 000 births at a referral hospital in Gorg...