Comparison of hospital charges generated by certified nurse-midwives' and physicians' clients.
D000328:Adult; D005249:Fees and Charges; D005260:Female; D006748:Hospital Departments / Q000191:economics*; D006801:Humans; D009721:Nurse Midwives / Q000191:economics*; D009774:Obstetrics / Q000191:economics*; D009775:Obstetrics and Gynecology Department, Hospital / Q000191:economics*; D011247:Pregnancy