ALK and neuroblastoma: Mutations of residues F1174 and I1171 were previously reported in neuroblastoma and crizotinib-resistant ALK+ cell lines and patients (Ceccon et al. 2013; Chen et al. 2008; George et al. 2008; Janoueix-Lerosey et al. 2008; Mosse et al. 2008; Sasaki et al. 2010; Zhang et al. 2011).