Numbers, Ronald L. <br/><br/>
Almost persuaded : american physicians and compulsory health insurance, 1912-1920 /  
Ronald L. Numbers 
 - Baltimore :   Johns Hopkins University Press,  1978 
 - xii, 158 p 
<br/><br/>Seguros de salud 
<br/><br/><label>ISBN: </label>0801820529 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Seguro de salud ---Estados Unidos
<br/><br/><label>Dewey Class. No.: </label>368.382 N971a