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. 1947 Jun;37(6):721–727.
Baltimore's Community Rat Control Program *
John T Emlen Jr
John T Emlen Jr
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*
A municipal enterprise supported by city appropriation and established in January, 1945, as a Division of Rodent Control in the Bureau of Street Cleaning. Research studies were conducted partly under a contract, recommended by the Committee on Medical Research, between the Office of Scientific Research and Development and The Johns Hopkins University Medical School, and partly under a grant from the Rockefeller Foundation International Health Division to The Johns Hopkins University, School of Hygiene and Public Health.
PMCID: PMC1623709 PMID: 18016542