Momburg, Moldenhauer, Hämmerling et al.: "Immunohistochemical study of the expression of a Mr 34,000 human epithelium-specific surface glycoprotein in normal and malignant tissues." in: Cancer research, Vol. 47, Issue 11, pp. 2883-91, 1987 (PubMed).
Beer, Shepherd, Theaker: "Ber EP4 and epithelial membrane antigen aid distinction of basal cell, squamous cell and basosquamous carcinomas of the skin." in: Histopathology, Vol. 37, Issue 3, pp. 218-23, 2000 (PubMed).
Carella, Deleonardi, DErrico et al.: "Immunohistochemical panels for differentiating epithelial malignant mesothelioma from lung adenocarcinoma: a study with logistic regression analysis." in: The American journal of surgical pathology, Vol. 25, Issue 1, pp. 43-50, 2000 (PubMed).
Hosch, Kraus, Scheunemann et al.: "Malignant potential and cytogenetic characteristics of occult disseminated tumor cells in esophageal cancer." in: Cancer research, Vol. 60, Issue 24, pp. 6836-40, 2001 (PubMed).