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Gig Tr Prof Zabol
; (3): 48-9, 1986 Mar.
Article
in Russian
| MEDLINE
| ID: mdl-3699503
2.
J Hyg Epidemiol Microbiol Immunol
; 15(4): 450-6, 1971.
Article
in English
| MEDLINE
| ID: mdl-5170801