Author:
Robinson H. P.,Fleming J. E. E.
Subject
Obstetrics and Gynaecology
Reference8 articles.
1. L. B. Arey (1965 ) Developmental Aizatonzy, a Textbook and Laboratory Manual of Embryology , 7th edition . W. B. Saunders and Company, Philadelphia and London, p.104 .
2. On the age of human embryos
3. B. M. Patten (1946 ) Human Embryology . Blakiston. Philadelphia and Toronto, p.181 .
4. Detection of Fetal Heart Movement in First Trimester of Pregnancy using Pulsed Ultrasound
5. Sonar Measurement of Fetal Crown-Rump Length as Means of Assessing Maturity in First Trimester of Pregnancy
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