Petty, T L <br/><br/>
Pulmonary medicine.  [electronic resource] 

 -  JAMA  May 1990 
 - 2677-8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0098-7484 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pulmonary Medicine--trends