Neither FDG-PET Nor CT can distinguish between a pathological complete response and an incomplete response after neoadjuvant chemoradiation in locally advanced rectal cancer: a prospective study. - Guillem JG; Ruby JA; Leibold T; Akhurst TJ; Yeung HW; Gollub MJ; Ginsberg MS; Shia J; Suriawinata AA; Riedel ER; Mazumdar M; Saltz LB; et al. (Annals of surgery, 2013)