| Literature DB >> 14173860 |
Abstract
Keywords: ENGLAND; INFANT MORTALITY; INFANT, PREMATURE; MATERNAL MORTALITY; PREGNANCY; PREGNANCY TOXEMIAS; STATISTICS
Mesh:
Year: 1964 PMID: 14173860 PMCID: PMC1816545 DOI: 10.1136/bmj.2.5412.817
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447