Height of Rectal Cancer: A Comparison between Rectoscopic and Different MRI Measurements. - Attenberger, U. I.; Winter, J.; Harder, F. N.; Burkholder, I.; Dinter, D.; Kaltschmidt, S.; Kienle, P.; Schoenberg, S. O.; Hofheinz, R. (Gastroenterology Research & Practice, 2020)