Davey, D A <br/><br/>
The value of ultrasound and clinical trials in obstetrics.  [electronic resource] 

 -  British journal of obstetrics and gynaecology  Jan 1986 
 - 95-7 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0306-5456 
<br/><br/><label>Standard No.: </label>10.1111/j.1471-0528.1986.tb07823.x  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clinical Trials as Topic<br/>Female<br/>Humans<br/>Pregnancy<br/>Pregnancy Complications--diagnosis<br/>Ultrasonography