1. Edge S, Byrd D, Compton C, Fritz A, Greene F, Trotti A. AJCC Cancer Staging Manual. New York: Springer Verlag; 2010.
2. Pecorelli S. Revised FIGO staging for carcinoma of the vulva, cervix, and endometrium. Int J Gynaecol Obstet. 2009 May. 105(2):103-4.
3. Hacker NF. Revised FIGO staging for carcinoma of the vulva. Int J Gynaecol Obstet. 2009 May. 105(2):105-6.