Ryan, Allan J <br/><br/>
A Challenge to the AMA.  [electronic resource] 

 -  The Physician and sportsmedicine  Feb 1975 
 - 86 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>2326-3660 
<br/><br/><label>Standard No.: </label>10.1080/00913847.1975.11948148  doi