Drug prescription rates before and after enrollment of a Medicaid population in an HMO.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004219:District of Columbia; D011307:Drug Prescriptions; D005252:Fees, Pharmaceutical; D005260:Female; D006279:Health Maintenance Organizations; D006801:Humans; D007223:Infant; D008297:Male; D008484:Medicaid; D008489:Medical Indigency; D008875:Middle Aged; D010593:Pharmaceutical Services / Q000706:statistics & numerical data*; D010820:Physicians / Q000706:statistics & numerical data; D011632:Public Assistance; D012737:Sex Factors