Fatemeh Shokri

Department of Epidemiology and Reproductive Health, Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.

[ 1 ] - Tehran Survey of Potential Risk Factors for Multiple Births

Background The incidence of multiple pregnancies has increasing worldwide and it is related to concern in the health care system. This study was aimed to determine the frequencyof multiple pregnancies, and to identify factors affecting the frequency of the phenomena in Tehran, Iran. MaterialsAndMethods In this cross sectional study, 5170 mothers in labor between July 6 to 21 2015 referred to 10...