1. Gynecologic and obstetric pathology;Novak,1979
2. Embryology, anatomy, and diseases of the umbilicus together with diseases of the urachus;Cullen,1916
3. Adenocarcinoma of the uterus with metastases to the umbilicus;Riemenschneider;Am J Obstet Gynecol,1952
4. Umbilical metastases;Horn;Arch Intern Med,1964
5. Carcinoma of the umbilicus;O’Leary;Am J Obstet Gynecol,1964