Medscape and the National Committee on Quality Assurance (NCQA).
O'Kane
M E
ME
Lundberg
G D
GD
D003695:Delivery of Health Care / Q000592:standards*; D006801:Humans; D020407:Internet / Q000458:organization & administration* / Q000706:statistics & numerical data; D008329:Managed Care Programs / Q000592:standards; D011643:Publishing / Q000458:organization & administration* / Q000706:statistics & numerical data; D011785:Quality Assurance, Health Care / Q000379:methods*; D014481:United States