1. Microgranulomas in grossly normal rectal mucosa in Crohn's disease;Rotterdam, H.; Korelitz, B.I.; Sommers, S.C.;Am J Clin Pathol,1977
2. Firm endoscopic changes in the rectal mucosa of Crohn's disease. A case report;Makiyama, K.; Kitukawa, K.; Tomita, S.;Gastrointest Endosc,1981
3. Effects of fixation and processing an immunohistochemical demonstration of immunoglobulin in paraffin sections of tonsil and bone marrow;Curran, R.C.; Gregory, J.;J Clin Pathol,1980
4. Mucosal biopsy of the gastrointestinal tract;Whitehead, R.,1979
5. Rectal biopsy in patients with Crohn's disease. Normal mucosa on sigmoidoscopic examination;Korelitz, B.I.; Sommers, S.C.;JAMA,1977