Race and pregnancy outcomes in the twentieth century
Subtitle: a long-term comparison
By: Dora L. Costa.
Contributors: National Bureau of Economic Research.
Series: NBER working paper series -- no. 9593.; Working paper series (National Bureau of Economic Research) -- working paper no. 9593.
Publisher: National Bureau of Economic Research
Published: 2003
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 33
Subjects: Prenatal care; Pregnancy -- United States
Notes: "March 2003."

Includes bibliographical references.

Also available in PDF from the NBER world wide web site (www.nber.org).