Use of routine prenatal ultrasound by private practice obstetricians in Iowa.
Ewigman
B
B
Department of Family and Community Medicine, University of Missouri Health Sciences Center, Columbia 65211.
Cornelison
S
S
Horman
D
D
LeFevre
M
M
D005251:Fees, Medical; D005260:Female; D005865:Gestational Age; D006801:Humans; D007484:Iowa / Q000453:epidemiology; D008503:Medical Staff; D009774:Obstetrics / Q000191:economics / Q000706:statistics & numerical data; D010824:Physicians' Offices; D011153:Population; D011247:Pregnancy; D011331:Private Practice / Q000191:economics / Q000706:statistics & numerical data; D011365:Professional Practice Location; D012017:Referral and Consultation / Q000706:statistics & numerical data; D016216:Ultrasonography, Prenatal / Q000191:economics / Q000295:instrumentation / Q000706:statistics & numerical data*