TY - BOOK AU - Wennberg,John E. AU - Gittelsohn,Alen M. ED - United States. TI - A small area approach to the analysis of health system perfromance U1 - 362.1040973 PY - 1979/// CY - Washington, D.C. PB - United States Government Printing Office KW - Health services accessibility KW - United States KW - Self-help groups ER -