Ballard, Carol. <br/><br/>
Body focus, the digestive system :  Injury, illness and health / 
by Carol Ballard. 
 - Oxford :  Heinemann,  2003. 
 - 48 p. :  photo ;  25 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0431157170 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digestive system.