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.
Shorb MS, Briggs GM. The effect of dissociation in Lactobacillus lactis cultures on the requirement for vitamin B12. J. Biol. Chem. 176: 1463-1464, 1948.
