00673nam 2200169z- 450 9910712704503321(CKB)5470000002497132(EXLCZ)99547000000249713220230509c1965uuuu -u- -engPhysician visits: interval of visits and children's routine checkup, United States - July 1963-June 1964U.S. Department of Health, Education, and Welfare, Public Health ServiceWashington, D.CPhysician visitsBOOK9910712704503321Physician visits: interval of visits and children's routine checkup, United States - July 1963-June 19643307562UNINA