Fekete, Thomas <br/><br/>
Life begins at forty.  [electronic resource] 

 -  Annals of internal medicine  Jul 2010 
 - 49-50 p.  digital 
<br/><br/> Publication Type: Comment; Editorial 
<br/><br/><label>ISSN: </label>1539-3704 
<br/><br/><label>Standard No.: </label>10.7326/0003-4819-153-1-201007060-00011  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Erectile Dysfunction--drug therapy<br/>Humans<br/>Male<br/>Phosphodiesterase Inhibitors--therapeutic use<br/>Research Design<br/>Sexually Transmitted Diseases--epidemiology<br/>United States--epidemiology<br/>Vasodilator Agents--therapeutic use