Mahendru, Amita A <br/><br/>
Gestational length assignment based on last menstrual period, first trimester crown-rump length, ovulation, and implantation timing.  [electronic resource] 

 -  Archives of gynecology and obstetrics  10 2016 
 - 867-76 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1432-0711 
<br/><br/><label>Standard No.: </label>10.1007/s00404-016-4153-3  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Crown-Rump Length<br/>Embryo Implantation--physiology<br/>Female<br/>Gestational Age<br/>Humans<br/>Menstruation<br/>Ovulation--physiology<br/>Pregnancy<br/>Pregnancy Trimester, First<br/>Prospective Studies<br/>Ultrasonography, Prenatal--methods