1. Interuniversity Institute for Biostatistics and Statistical Bioinformatics; KULeuven; Leuven & Universiteit Hasselt, Diepenbeek Belgium
2. Department of Biostatistics; Erasmus MC, Rotterdam The Netherlands
3. Department of Internal Medicine; Sint Franciscus Gasthuis, Rotterdam The Netherlands
4. Department of Medical Oncology; Erasmus MC - Daniel den Hoed Cancer Center; Rotterdam The Netherlands