Erratum: Phase II study of neoadjuvant therapy with docetaxel, cisplatin, panitumumab, and radiation therapy followed by surgery in patients with locally advanced adenocarcinoma of the distal esophagus (acosog z4051) (Annals of Oncology (2014) 25 (1039-1044) DOI: 10.1093/annonc/mdu091)