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2. Surgical derivation of mice. Disease-free (SPF) animals;Bleby,1976
3. Cocarginogenic activity of peroxy compounds;Bock;JNCI, J. Natl. Cancer Inst.,1975
4. Oxygen consumption of germfree and conventional mice;Bruckner-Kardoss;Lab. Anim. Sci.,1978
5. Uterine infections caused by bacteria and mycoplasma in mice and rats;Casillo;J. Comp. Pathol.,1972