1. Abrams GD, Bishop JE (1965) Normal flora and leukocyte mobilization. Arch Pathol 79: 213–217.
2. Albert O, Massot J, Courtois MC (1977) Etude cinetique quantitative de la repartition d’une levure vivante du genre Saccharomyces a differents niveaux du tractus digestif. Vie Med 18:1604–1606.
3. Alderete JF, Robertson DC (1977) Nutrition and enterotoxin synthesis by enterotoxigenic strains of Escherichia coli. defined medium for production of heat-stable enterotoxin. Infect Immun 15:781–188.
4. Aly R, Shinefield HR (1982) Bacterial Interference. Boca Raton: CRC Press.
5. Artwohl JE, Savage DC (1979) Determinants in microbial colonization of the murine gastrointestinal tract: pH, temperature, and energy-yielding metabolism of Torulopsis pintolopesii. Appl Environ Microbiol 37:697–703.