Description
Item Description:"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."
"November 1968."
Physical Description:1 online resource (iv, 35 pages) : 1 illustration, forms.
Bibliography:Includes bibliographical references (page 11).