Addition of Platinum Derivatives to Fluoropyrimidine-Based Neoadjuvant Chemoradiotherapy for Stage II/III Rectal Cancer: Systematic Review and Meta-Analysis. - Hüttner, Felix J; Probst, Pascal; Kalkum, Eva; Hackbusch, Matthes; Jensen, Katrin; Ulrich, Alexis; Debus, Jürgen; Jäger, Dirk; Diener, Markus K (JNCI: Journal of the National Cancer Institute, 2019)