Hillmen P, Xie J, Yong A, Waweru C, Sorof TA, Goyal RK, Davis KL. Real-world treatment patterns, adverse events and clinical outcomes in patients with chronic lymphocytic leukaemia treated with ibrutinib in the UK. EJHaem. 2021 May;2(2):219-27. doi: 10.1002/jha2.174
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.