Elting LS, Chang YC, Parelkar P, Boers-Doets CB, Michelet M, Hita G, Rouleau T, Cooksley C, Halm J, Vithala M, Bossi P, Escalante C, Brennan MT. Risk of oral and gastrointestinal mucosal injury among patients receiving selected targeted agents: a meta-analysis. Support Care Cancer. 2013 Nov; 21(11):3243-54.