| Literature DB >> 1391127 |
Abstract
National trends in twin birth incidence by race of child are analyzed for the period 1950-88. Also reviewed are maternal and infant health and demographic characteristics associated with twin delivery for the year 1988.Entities:
Mesh:
Year: 1992 PMID: 1391127
Source DB: PubMed Journal: Vital Health Stat 21 ISSN: 1057-7629