Family pregnancy shot compared to simple-of-proper care ultrasound relationship regarding the investigations of pregnancy stage
21. Creinin Meters D, Keverline S, Meyn L Good. Just how typical was normal? An analysis of menstrual cycle volume. Contraceptive. 2004; 70 :289–292. [PubMed] [Google College student]
twenty two. Geirsson R T, Busby-Earle R M. Particular times may well not bring a professional estimate away from gestational many years. Br J Obstet Gynaecol. 1991; 98 :108–109. [PubMed] [Bing Pupil]
23. Waller D K, Spears W D, Gu Y. mais aussi al. Examining amount-certain mistake throughout the recall of start of last menstrual period.