Koohbor,M. , , Davati,A. , , Garshasbi,A. , and Torkestani,F. . "Evaluation of effective factors on the choice of delivery method by nulliparous pregnant women referring to Shaheed Mostafa Khomeini hospital in Tehran", Daneshvar Medicine, 29, 6, 2022, 14-23. doi: 10.22070/daneshmed.2021.15211.1128