[1] Maastricht Univ, Med Ctr, Oncol, NL-6200 MD Maastricht, Netherlands
[2] Maastricht Univ, Med Ctr, Radiotherapy, NL-6200 MD Maastricht, Netherlands
[3] Univ Amsterdam, Acad Med Ctr, Surg, Meibergdreef 9, NL-1105 AZ Amsterdam, Netherlands
[4] Jeroen Bosch Ziekenhuis, Surg, Den Bosch, Netherlands
[5] Zuyd Univ Appl Sci, Hlth Care, Heerlen, Netherlands
[6] Maastricht Univ, Sch Publ Hlth & Primary Care, NL-6200 MD Maastricht, Netherlands