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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.
Can. J. Bot. 39: 655, 1961.
. . Phytopathology 50: 711, 1960.
. . Tijdschr. Plantenziekten 65: 89, 1959.
. . Tijdschr. Plantenziekten 66: 102, 1960.
