Pfeiffer, P H <br/><br/>
Reflections on reaching the age of fifty.  [electronic resource] 

 -  The Journal of the Maine Medical Association  Feb 1968 
 - 30-2 p.  digital 
<br/><br/> Publication Type: Historical Article; Journal Article 
<br/><br/><label>ISSN: </label>0025-0694 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History, 20th Century<br/>Humans<br/>Physicians--standards<br/>United States