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2. Calmette A., Guérin C., Ann. Inst. Pasteur 34, 553 (1920).
3. Behr M. A., Small P. M., Nature 389, 133 (1997).
4. ___, Vaccine 17, 915 (1999).
5. Strains used were M. tuberculosis H37Rv BCG-Russia (ATCC 35740) BCG-Moreau BCG-Japan BCG-Sweden BCG-Prague BCG-Phipps (ATCC 35744) BCG-Denmark 1331 (ATCC 35733) BCG-Tice (ATCC 35743) BCG-Frappier (ATCC 35735) BCG-Connaught BCG-Birkhaug (ATCC 35731) BCG-Glaxo (ATCC 35741) and BCG-Pasteur 1173.