[1] EORTC, Biostat, Brussels, Belgium
[2] EORTC, Clin Epidemiol Biostat & Bioinformat, Brussels, Belgium
[3] Univ Toronto, Dept Radiat Oncol, Princess Margaret Canc Ctr, Toronto, ON, Canada
[4] Univ Toronto, Toronto, ON, Canada
[5] EORTC, Quantitat Psychol Personal & Social Psychol, Brussels, Belgium
[6] EORTC, Brussels, Belgium
[7] Queens Univ, Kingston, ON, Canada
[8] Lineberger Comprehens Canc Ctr, Chapel Hill, NC USA
[9] Karolinska Inst, Solna, Sweden
[10] Univ Copenhagen, Copenhagen, Denmark
[11] Princess Maxima Ctr, Utrecht, Netherlands
[12] Champalimaud Clin Ctr, Lisbon, Portugal
[13] Antwerp Univ Hosp, Edegem, Belgium
[14] Inst Canc Res, London, England
[15] Univ Leiden McHaaglanden, Leiden, Netherlands
[16] Vrije Univ Amsterdam Med Ctr, Amsterdam, Netherlands
[17] Acad Med Ctr, Amsterdam, Netherlands
[18] Univ Torino, Turin, Italy
[19] St Jamess, Leeds Inst Med Res, Leeds, W Yorkshire, England
[20] Magdeburg Univ Klin, Magdeburg, Germany
[21] EORTC, Psychol, Brussels, Belgium