| Literature DB >> 14064968 |
Abstract
Entities:
Keywords: AGING; BIRTH ORDER; FAMILY; FETAL DEATH; INFANT MORTALITY; SEX; SOCIAL CONDITIONS; STATISTICS; TWINS; VITAL STATISTICS
Mesh:
Year: 1963 PMID: 14064968 DOI: 10.1111/j.1469-1809.1963.tb00774.x
Source DB: PubMed Journal: Ann Hum Genet ISSN: 0003-4800 Impact factor: 1.670