Correction to: Imaging therapy response of gastrointestinal stromal tumors (GIST) with FDG PET, CT and MRI: a systematic review

The article "Imaging therapy response of gastrointestinal stromal tumors (GIST) with FDG PET, CT and MRI: a systematic review", written by Antonia Dimitrakopoulou-Strauss, Ulrich Ronellenfitsch, Caixia Cheng, Leyun Pan, Christos Sachpekidis, Peter Hohenberger, and Thomas Henzler, was originally published Online First without open access. After publication in volume 5, issue 3, pages 183‒197, the author decided to opt for Open Choice and to make the article an open access publication. Therefore, the copyright of the article has been changed to © The Author(s) 2017 and the article is forthwith distributed under the terms of the Creative Commons Attribution 4.0 International License (http://ift.tt/1iwynXF), which permits use, duplication, adaptation, distribution and reproduction in any medium or format, as long as appropriate credit is given to the original author(s) and the source, a link is provided to the Creative Commons license, and any changes made are indicated.