Intra-uterine devices :   physiological and clinical aspects : report of a WHO scientific group / 

 - Geneva :  World Health Organization,  c 1968. 
 - 32 p. :   ill. ;  24 cm. 
 - World Health Organization Technical Report Series, 397. .
<br/><br/>344  344 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human physiology.
<br/><br/><label>Dewey Class. No.: </label>612.646 / W893i