1. The catalog of human cytokeratins: Patterns of expression in normal epithelia, tumors and cultured cells
2. Moll R, Löwe A, Laufer J, Franke WW. Cytokeratin 20 in human carcinomas. A new histodiagnostic marker detected by monoclonal antibodies. Am J Pathol 1992;140:427-447.
3. Cooper D, Schermer A, Sun TT. Classification of human epithelia and their neoplasms using monoclonal antibodies to keratins: strategies, applications, and limitations. Lab Invest 1985;52:243-256.
4. Su Q, Gong MZ, Liu YF. Immunocytochemical localization of epidermal keratin in the livers of rat and its embryos. Dongwu Xuebao 1988;34:344-347.
5. Su Q, Liu YF, Gong MZ. Mechanism of the morphogenesis of intrahepatic bile ducts in rat embryos, a cytokeratin and laminin-immunohistochemical study. Di-Si Junyi Daxue Xuebao 1994;15:168-172.