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.
Matsushiro A. Specialized transduction of tryptophan markers in Escherichia coli K12 by bacteriophage phi-80. Virology 19: 475-482, 1963. PubMed: 13933810
