| Literature DB >> 5233991 |
K G Baber, B Corner, E H Duncan, S M Eades, W A Gillespie, S C Walker.
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Year: 1967 PMID: 5233991 PMCID: PMC2130341 DOI: 10.1017/s0022172400045903
Source DB: PubMed Journal: J Hyg (Lond) ISSN: 0022-1724