Harker, D W <br/><br/>
MARATHON update.  [electronic resource] 

 -  Physical therapy  May 1989 
 - 358-9 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0031-9023 
<br/><br/><label>Standard No.: </label>10.1093/ptj/69.5.358  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Physical Therapy Modalities--methods<br/>Professional Practice--organization & administration<br/>Software--standards