1. Preterm delivery and psycho-social determinants of health based on World Health Organization model in Iran: a narrative review;Dolatian;Glob J Health Sci,2012
2. Neonatal complications following preterm birth;Ward;BJOG Int J Obstet Gynaecol,2003
3. Neonatal mortality and morbidity rates in late preterm births compared with births at term;McIntire;Obstet Gynecol,2008
4. The epidemiology of preterm labour;Steer;BJOG Int J Obstet Gynaecol,2005
5. The management of preterm labor;Goldenberg;Obstet Gynecol,2002