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Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
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. . Plant Dis. Rep. 47: 58, 1963.
. . Plant Dis. Rep. 54: 428, 1964.
. . Plant Dis. Rep. 59: 553, 1965.
