B Ewigman1, S Cornelison, D Horman, M LeFevre. Show Affiliations » 1. Department of Family and Community Medicine, University of Missouri Health Sciences Center, Columbia 65211.
Abstract
Mesh： See more » Fees, MedicalFemaleGestational AgeHumansIowa/epidemiologyMedical StaffObstetrics/economicsObstetrics/statistics & numerical dataPhysicians' OfficesPopulationPregnancyPrivate Practice/economicsPrivate Practice/statistics & numerical dataProfessional Practice LocationReferral and Consultation/statistics & numerical dataUltrasonography, Prenatal/economicsUltrasonography, Prenatal/instrumentationUltrasonography, Prenatal/statistics & numerical data
Year: 1991 PMID： 1942231 DOI： 10.7863/jum.1991.10.8.427
Source DB: PubMed Journal: J Ultrasound Med ISSN： 0278-4297 Impact factor: 2.153