Mechanism of action, safety and efficacy of intrauterine devices  report of a WHO Scientific Group 
by World Health Organization. 
 - Geneva  World Health Organization  1987. 
 - 91 p. : ill. ; 20 cm. 
 - Technical report series  n.753 .
<br/><br/><label>ISBN: </label>9241207531 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Intrauterine Devices.