PO-0759 Radiotherapy After Primary CHEMotherapy (RAPCHEM): protocol adherence in a Dutch registration study. (April 2019) - Boersma, L.; Elkhuizen, P.; Houben, R.; Van Leeuwen, E.; Linn, S.; De Munck, L.; Pijnappel, R.; Strobbe, L.; Van Dalen, T.; Verloop, J.; Voogd, A.; Wessling, J.; et al.