Khan AM, Kagan DB, Gupta N, Navajas EV, Jin Y-P, Yucel YH. Ciliary body lymphangiogenesis in uveal melanoma with and without extraocular extension. Ophthalmology. 2013 Feb;120(2):306-10. doi: 10.1016/j.ophtha.2012.07.064
Cann CI, Fried MP, Rothman KJ. Epidemiology of squamous-cell cancer of the head and neck. Otolaryngol Clin N Am. 1985 Aug 1;18(3):367-88.