1) Page, R. C. and Schroeder, H. E.: Pathogenesis of inflammatory periodontal disease. A summary of current work. Lab. Invest., 33: 235-249, 1976.
2) Seymore, G. J., Powell, R. N. and Davies, W. I. R.: The immunopathogenseis of progressive chronic inflammatory periodontal disease. J. Oral Pathology, 8: 249-265, 1979.
3) Seymore, G. J., Powell, R. N. and Daires, W. I. R.: Conversion of a stable T cell lesion to a progressive B cell lesion in the pathogenesis of chronic inflammatory periodontal disease. An hypothesis. J. Clin. Periodontol., 6: 267-277, 1979.
4) Seymore, G. J. and Greenspan, J. S.: The phenotypic characterization of lymphocyte subpopulation in established human periodontal disease. J. Periodontal Res., 4: 39-46, 1979.
5) Pazandak, D. P., Rogers III, R. S, and Reeve, C. M.: T and B lymphocyte distribution in periodontal disease. J. Periodontol., 49: 625-630, 1978.