Pre-existing antitherapeutic antibodies against the Fc region of the hu14.18K322A mAb are associated with outcome in patients with relapsed neuroblastoma ========================================================================================================================================================= * Jacob L Goldberg * Fariba Navid * Jacquelyn A Hank * Amy K Erbe * Victor Santana * Jacek Gan * Fenna de Bie * Amal M Javaid * Anna Hoefges * Michael Merdler * Lakeesha Carmichael * KyungMann Kim * Michael W Bishop * Michael M Meager * Stephen D Gillies * Janardan P Pandey * Paul M Sondel