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3. Isolation of an enzyme from Streptococcus sanguis which specifically cleaves IgA1;Plaut, A.G.; Genco, R.J.; Tomasi, T.B.;J Immunol,1974
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5. Neisseria meningitidus and gonorrhoeae: extracellular enzyme cleaves human immunoglobulin A;Plaut, A.G.; Gilbert, J.V.; Artenstein, M.S.; Capra, J.D.;Science,1975