| Literature DB >> 14087992 |
Abstract
Keywords: AFRICA; AUSTRIA; BELGIUM; BRITISH GUIANA; CEYLON; FAMILY; FAMILY PLANNING; FERTILITY; GREAT BRITAIN; INDIA; INFANT MORTALITY; MALAYSIA; NORWAY; PUERTO RICO; UNITED STATES; VITAL STATISTICS; WALES; WEST INDIES
Mesh:
Year: 1963 PMID: 14087992 DOI: 10.1098/rspb.1963.0074
Source DB: PubMed Journal: Proc R Soc Lond B Biol Sci ISSN: 0950-1193