Potts, D M <br/><br/>
IUDs and PID: a comparative trial of strings versus stringless devices.  [electronic resource] 

 -  Advances in contraception : the official journal of the Society for the Advancement of Contraception   
 - 231-40 p.  digital 
<br/><br/> Publication Type: Clinical Trial; Comparative Study; Journal Article; Multicenter Study; Randomized Controlled Trial; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>ISSN: </label>0267-4874 
<br/><br/><label>Standard No.: </label>10.1007/BF01849413  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Equipment and Supplies<br/>Female<br/>Humans<br/>Incidence<br/>Intrauterine Devices, Copper--adverse effects<br/>Pelvic Inflammatory Disease--epidemiology