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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.
. . Eur. Potato J. 7: 72-73, 1964.
. . New Phytol. 66: 217-230, 1967.
. . New Phytol. 66: 205-215, 1967.
