The fragmentation of the medical profession.
D003695:Delivery of Health Care / Q000191:economics*; D005251:Fees, Medical; D006279:Health Maintenance Organizations / Q000191:economics; D006801:Humans; D007193:Independent Practice Associations / Q000191:economics; D008329:Managed Care Programs / Q000191:economics*; D008910:Minnesota; D010818:Practice Patterns, Physicians' / Q000592:standards*