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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.
Phaff HJ, et al. Pichia barkeri, a new yeast species occurring in necrotic tissue of Opuntia stricta. Int. J. Syst. Bacteriol. 37: 386-390, 1987.