HASABE, R. A.; TRIPATHI, N. S.; KESARKODI, P. Menstruating umbilicus: secondary subcutaneous umbilical endometriosis: a rare case report. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 11, n. 6, p. 1814–1817, 2022. DOI: 10.18203/2320-1770.ijrcog20221469. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/11692. Acesso em: 4 dec. 2025.