↑“Human PubMed Reference:”. 《National Center for Biotechnology Information, U.S. National Library of Medicine》.
↑“Mouse PubMed Reference:”. 《National Center for Biotechnology Information, U.S. National Library of Medicine》.
↑Barletta C, Batticane N, Ragusa RM, Leube R, Peschle C, Romano V (1990). “Subchromosomal localization of two human cytokeratin genes (KRT4 and KRT15) by in situ hybridization”. 《Cytogenet. Cell Genet.》 54 (3–4): 148–50. doi:10.1159/000132979. PMID1702379.