METHOD OF OBTAINING NON-CHOLERAGENIC F-NEGATIVE CHOLERA EMBRYO VERSIONS
PINIGIN ANATOLIJ F,SU, SHEVCHENKO LYUDMILA A,SU, POZDEEVA IRINA A,SU, MISHANKIN BORIS N,SU
Year of Publication 07.11.1992
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Year of Publication 07.11.1992
Patent