McCluggage WG, Shah R, Connolly LE, McBride HA. Intestinal-Type Cervical Adenocarcinoma In Situ and Adenocarcinoma Exhibit a Partial Enteric Immunophenotype With Consistent Expression of CDX2. International Journal of Gynecological Pathology. 2008 Jan;27(1):92–100. doi: 10.1097/pgp.0b013e31815698e7.