1. J. Mestecky, J.R. McGhee, S.M. Michalek, R.R. Arnold, S.S. Crago and J.L. Babb. Concept of the local and common mucosal immune response. Adv.Exp.Med.Biol. 107:185–192 (1978).
2. J.P. Vaerman. The secretory immune system. Antibiot. Chemother. 39:41–50 (1987).
3. J.P. Kraehenbuhl and M.R. Neutra. Molecular and cellular basis of immune protection of mucosal surfaces. Physiol.Rev. 72:853–879 (1992).
4. P. Brandtzaeg, A.E. Berstad, I.N. Farstad, G. Haraidsen, L. Helgeland, F.L. Jahnsen, F.E. Johansen, I.B. Natvig, et al. Mucosal immunity-a major adaptive defence mechanism. Behring.Inst.Mitt. 98:1–23 (1997).
5. E. Knop and N. Knop. MALT tissue of the conjunctiva and nasolacrimal system in the rabbit and human. Vision Research 36:60 (1996).