1. Ramaekers, F., et al. (1987). Tissue distribution of keratin 7 as monitored by a monoclonal antibody, Exp Cell Res 170, 235-49.2. Smedts, F., et al. (1990). Changing patterns of keratin expression during progression of cervical intraepithelial neoplasia, Am J Pathol 136, 657-68.3. Schaafsma, H. E., et al. (1990). Distribution of cytokeratin polypeptides in human transitional cell carcinomas, with special emphasis on changing expression patterns during tumor progression, Am J Pathol 136, 329-43.4. Ramaekers, F., et al. (1990). Use of monoclonal antibodies to keratin 7 in the differential diagnosis of adenocarcinomas, Am J Pathol 136, 641-55.5. Bauwens, L. J., et al. (1992). Expression of intermediate filament proteins in the adult human vestibular labyrinth, Ann Otol Rhinol Laryngol 101, 479-86.6. Smedts, F., et al. (1992). Keratin expression in cervical cancer, Am J Pathol 141, 497-511.7. Ivanyi, D., et al. (1992). Patterns of expression of feline cytokeratins in healthy epithelia and mammary carcinoma cells, Am J Vet Res 53, 304-14.