PMID: 4282624 [PubMed - indexed for MEDLINE]
Trop Geogr Med. 1974 Jun; 26(2):210-3.
[Trop Geogr Med. 1974]
Am J Epidemiol. 1982 Aug; 116(2):228-42.
[Am J Epidemiol. 1982]
NIPH Ann. 1980 May; 3(1):49-56.
[NIPH Ann. 1980]
Br Med Bull. 1979 Jan; 35(1):3-8.
[Br Med Bull. 1979]
Prog Med Virol. 1974; 17(0):91-135.
[Prog Med Virol. 1974]
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