Geographic variations in payments to physicians.
Brownsberger
W N
WN
D000368:Aged; D002391:Catchment Area, Health; D005102:Health Expenditures; D006801:Humans; D016345:Medicare Part B / Q000191:economics*; D010548:Personal Health Services / Q000191:economics*; D010820:Physicians / Q000600:supply & distribution; D014481:United States