van den Brink, A <br/><br/>
Quantification of fetal swallowing by ultrasound is impossible.  [electronic resource] 

 -  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology  Dec 2006 
 - 977-8 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0960-7692 
<br/><br/><label>Standard No.: </label>10.1002/uog.3851  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Deglutition--physiology<br/>Female<br/>Fetus--physiology<br/>Humans<br/>Infant, Newborn<br/>Male<br/>Pregnancy<br/>Prospective Studies<br/>Ultrasonography, Prenatal