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Rev Sanid Hig Publica (Madr)
; 55(7-8): 907-12, 1981.
Article
in Spanish
| MEDLINE
| ID: mdl-7348422
2.
Can J Microbiol
; 15(9): 989-93, 1969 Sep.
Article
in English
| MEDLINE
| ID: mdl-5371937