Cassels, Donald E. <br/><br/>
The ductus arteriosus / 
by Donald E. Cassels 
 - Springfield, Ill. :  Thomas,  1973 
 - 345 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>039802720X 
<br/><br/><label>LCCN: </label>72-092163 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ductus arteriosus<br/>Pediatric Cardiology