The ecology of medical care revisited.
Green
L A
LA
Robert Graham Center, Washington, DC 20036, USA.
Fryer
G E
GE
Yawn
B P
BP
Lanier
D
D
Dovey
S M
SM
D000328:Adult; D002648:Child; D003695:Delivery of Health Care / Q000458:organization & administration / Q000706:statistics & numerical data*; D005260:Female; D006296:Health Services / Q000706:statistics & numerical data*; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D009017:Morbidity; D009819:Office Visits / Q000706:statistics & numerical data; D014481:United States / Q000453:epidemiology