Lewis, S E <br/><br/>
Is male infertility on the increase?  [electronic resource] 

 -  The Ulster medical journal  Nov 1997 
 - 78-9 p.  digital 
<br/><br/> Publication Type: Editorial 
<br/><br/><label>ISSN: </label>0041-6193 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Infertility, Male--epidemiology<br/>Male<br/>United Kingdom--epidemiology<br/>United States--epidemiology