Morris, Carl N. <br/><br/>
Sample selection in the health insurance experiment :  comparing the enrolled and nonenrolled populations / 
Carl N. Morris ; prepared for the U.S. Department of Health and Human Services. 
 - California :  Rand Corporation,  1985 
 - xii, 59 p. ;  28 cm. 
 - A Rand note ;  N-2354--HHS .
 - Rand note ;  N-2354--HHS .
<br/><br/>Includes bibliographical references (p.59) 
<br/><br/><label>ISBN: </label> Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Health insurance--United States<br/>Health surveys--United States