Langdon, D E <br/><br/>
Physician liberation units system.  [electronic resource] 

 -  The New England journal of medicine  Dec 1970 
 - 1413 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0028-4793 
<br/><br/><label>Standard No.: </label>10.1056/nejm197012172832523  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Financing, Government<br/>United States<br/>Weights and Measures