Author:
Johnson Sarah R.,Godbert Sonya,Perry Paul,Parsons Pauline,Roberts Louise,Buchanan Philip,Larsen John,Alonzo Todd A.,Zinaman Michael
Subject
Obstetrics and Gynaecology,Reproductive Medicine
Reference23 articles.
1. How regular is regular? An analysis of menstrual cycle regularity;Creinin;Contraception,2004
2. Levels of urinary human chorionic gonadotrophin (hCG) following conception and variability of menstrual cycle length in a cohort of women attempting to conceive;Johnson;CMRO,2009
3. Certain dates may not provide a reliable estimate of gestational age;Geirsson;Br J Obstet Gynaecol,1991
4. Ultrasound for fetal assessment in early pregnancy;Whitworth;Cochrane Database Syst Rev,2010
5. Fetal crown-rump length: re-evaluation of relation to menstrual age (5–18 weeks) with high resolution real-time US;Hadlock;Radiology,1992
Cited by
8 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献