Erratum to: Feasibility outcomes of a presurgical randomized controlled trial exploring the impact of caloric restriction and increased physical activity versus a wait-list control on tumor characteristics and circulating biomarkers in men electing prostatectomy for prostate cancer. Issue 1 (December 2017) - Demark-Wahnefried, Wendy; Nix, Jeffery; Hunter, Gary; Rais-Bahrami, Soroush; Desmond, Renee; Chacko, Balu; Morrow, Casey; Azrad, Maria; Frugé, Andrew; Tsuruta, Yuko; Ptacek, Travis; Tully, Scott; et al.