Intrapartum ultrasonography for labor management / 
Antonio Malvasi, editor. 
 - Heidelberg :  Springer,  2012. 
 - xiii, 189 p. :  ill. ;  26 cm. 
<br/><br/><label>ISBN: </label>9783642299384  RM292.21 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor, Obstetric--physiology.<br/>Ultrasonography--methods.