Wennberg, John E. <br/><br/>
A small area approach to the analysis of health system perfromance / 
John E. Wennberg and Alen M. Gittelsohn 
 - Washington, D.C. :  United States Government Printing Office,  1979 
 - xvi, 266 p. ;  30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Health services accessibility--United States<br/>Self-help groups--United States
<br/><br/><label>Dewey Class. No.: </label>362.1040973