S M Schappert1. Show Affiliations » 1. Division of Health Care Statistics, National Center for Health Statistics.
Abstract
Mesh: See more » AdolescentAdultAgedAmbulatory Care/statistics & numerical dataEthnic Groups/statistics & numerical dataFemaleGynecology/statistics & numerical dataHealth SurveysHumansMiddle AgedNational Center for Health Statistics, U.S.Obstetrics/statistics & numerical dataOffice Visits/statistics & numerical dataPregnancyUnited States
Year: 1993 PMID: 10126845
Source DB: PubMed Journal: Adv Data ISSN: 0147-3956