| Literature DB >> 14334763 |
Abstract
Keywords: FETAL DEATH; INFANT MORTALITY; SEX; TWINS; UNITED STATES
Mesh:
Year: 1965 PMID: 14334763 PMCID: PMC1256481 DOI: 10.2105/ajph.55.9.1411
Source DB: PubMed Journal: Am J Public Health Nations Health ISSN: 0002-9572