Effectiveness of various rodenticides on populations of brown rats in Baltimore. Maryland.
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D015142:Baltimore; D001699:Biometry; D008396:Maryland; D011051:Poliomyelitis / Q000453:epidemiology* / Q000706:statistics & numerical data* / Q000635:transmission*; D017955:Poliovirus; D051381:Rats; D012378:Rodenticides; D012722:Sewage; D014780:Viruses
D012378:Rodenticides; D012722:Sewage
POLIOMYELITIS/epidemiology and statistics; POLIOMYELITIS/transmission; POLIOMYELITIS/virus; RATS/eradiction; RODENTICIDES; SEWAGE; VIRUSES