http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
legitimate live births, United States - 1963
National Center for Health Statistics (U.S.)
1 online resource (iv, 35 pages) : 1 illustration, forms.
"Statistics on the variation in birth weight according to whether or not the mother was employed during pregnancy, 1962 family income, the time of the first visit for medical care and the number of visits during the 12 months preceding childbirth. Based on data collected by a questionnaire mailed to mothers and medical care services for a sample selected from records of births in 1963 which filed with the National Center for Health Statistics."
Includes bibliographical references (page 11).
Public Health Service publication ; no. 1000
Data from the national vital statistics system