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.
Ross WD, Corden ME. Microscopic and histochemical changes in Douglas-fir bark accompanying fungal invasion. Wood Fiber 5: 129-138, 1973.
Ross WD, Corden ME. Selective degradation of lignin and condensed tannins of Douglas-fir bark sclereids by fungi. Wood Fiber 6: 2-12, 1974.
