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Gig Sanit
; 37(9): 90-1, 1972 Sep.
Article
in Russian
| MEDLINE
| ID: mdl-4668117
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Gig Sanit
; 34(11): 66-8, 1969 Nov.
Article
in Russian
| MEDLINE
| ID: mdl-5379227
3.
Tr Leningr Nauchnoissled Inst Epidemiol Mikrobiol
; 29: 29-35, 1966.
Article
in Russian
| MEDLINE
| ID: mdl-4235446