the Epidemiology of normal pregnancies with unknown last menstrual period (LMP) was studied in 1192 singleton pregnancies.the LMP was unknown in 240(20.3%) pregnancies.unknown LMP is associated with high rates of low birth weight and all low socio-economic and socio-demographic status.such characteristics are also associated with a high rate of preterm deliveries.any possible bias introduced in studies prematurity by ignoring the group of women with unknown LMP should be carefully checked.
Janghorbani, M. & Farsi, F. (1995). Epidemiology of pregnancies with unknown last menstrual period. Journal of Kerman University of Medical Sciences, 2(4), 61–65.
MLA
Janghorbani, M., & Farsi, F. "Epidemiology of pregnancies with unknown last menstrual period", Journal of Kerman University of Medical Sciences, 2, 4, 1995, 61–65.
HARVARD
Janghorbani, M., & Farsi, F. (1995). 'Epidemiology of pregnancies with unknown last menstrual period', Journal of Kerman University of Medical Sciences, 2(4), pp. 61–65.
CHICAGO
Janghorbani, M. & Farsi, F., "Epidemiology of pregnancies with unknown last menstrual period." Journal of Kerman University of Medical Sciences, 2 4 (1995): 61–65,
VANCOUVER
Janghorbani M., Farsi F. Epidemiology of pregnancies with unknown last menstrual period. JKMU. 1995;2(4):61–65.
