References
- 1. Kelly Henry Ansgar. Chaucer and the cult of Saint Valentine. Leiden: E.J. Brill. 1986. pg. 46-5810.1163/9789004625792
- 2. Kurman RJ, Carcangiu ML, Herrington CS, Young RH, eds. WHO Classification of Tumours of Female Reproductive Organs. 4th edition. IARC: Lyon 2014.