C. A. Egan, M. R. Martineau, T. B. Taylor, L. J. Meyer, M. J. Petersen, and J. J. Zone, “IgA Antibodies Recognizing LABD97 Are Predominantly IgA1 Subclass”, Acta Derm Venereol, vol. 79, no. 5, pp. 343–346, Sep. 1999.