Tegnander, E <br/><br/>
Incorporating the four-chamber view of the fetal heart into the second-trimester routine fetal examination.  [electronic resource] 

 -  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology  Jan 1994 
 - 24-8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0960-7692 
<br/><br/><label>Standard No.: </label>10.1046/j.1469-0705.1994.04010024.x  doi