| Literature DB >> 14086456 |
Abstract
Keywords: AUTOMATIC DATA PROCESSING; PUBLIC HEALTH; PUNCHED-CARD SYSTEMS; RESEARCH
Mesh:
Year: 1963 PMID: 14086456 PMCID: PMC1254536 DOI: 10.2105/ajph.53.12.1953
Source DB: PubMed Journal: Am J Public Health Nations Health ISSN: 0002-9572