1 Dutch Institute for Clinical Auditing, Rijnsburgerweg 10, Leiden, 2333AA, The Netherlands.
2 Department of Medical Oncology, Amsterdam UMC, VU University Medical Center, Cancer Center Amsterdam, De Boelelaan 1118, Amsterdam, 1081HZ, The Netherlands.
3 Department of Surgical Oncology, Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands.
4 Department of Pharmacy, Rode Kruis Ziekenhuis, Vondellaan 13, Beverwijk, 1942LE, The Netherlands.
5 Department of Medical Oncology and Immunology, Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands.
6 Department of Molecular Oncology & Immunology, Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands.
7 Department of Medical Oncology, Maastricht University Medical Centre, P. Debyelaan 25, Maastricht, 6229 HX, The Netherlands.
8 Department of Medical Oncology, Zuyderland Medical Centre Sittard, Dr. H. van der Hoffplein 1, Sittard-Geleen, 6162BG, The Netherlands.
9 Isala Oncology Center, Isala, Dokter van Heesweg 2, Zwolle, 8025AB, The Netherlands.
10 Department of Medical Oncology, University Medical Centre Groningen, Hanzeplein 1, Groningen, 9713GZ, The Netherlands.
11 Department of Medical Oncology, Leiden University Medical Centre, Albinusdreef 2, Leiden, 2333ZA, The Netherlands.
12 Department of Internal Medicine, Medisch Spectrum Twente, Koningsplein 1, Enschede, 7512KZ, The Netherlands.
13 Department of Internal Medicine, Medical Centre Leeuwarden, Henri Dunantweg 2, Leeuwarden, 8934AD, The Netherlands.
14 Department of Medical Oncology, University Medical Centre Utrecht, Heidelberglaan 100, Utrecht, 3584CX, The Netherlands.
15 Department of Pathology, Division of Laboratories, Pharmacy and Biomedical Genetics, University Medical Center Utrecht. Heidelberglaan 100, Utrecht, 3584 CX, The Netherlands.
16 Department of Internal Medicine, Amphia Hospital, Molengracht 21, Breda, 4818CK, The Netherlands.
17 Departments of Medical Oncology and Radiology & Nuclear Medicine, Erasmus Medical Centre, 's-Gravendijkwal 230, Rotterdam, 3015CE, The Netherlands.
18 Department of Internal Medicine, Maxima Medical Centre, De Run 4600, Eindhoven, 5504DB, The Netherlands.
19 Department of Medical Oncology, Radboud University Medical Centre, Geert Grooteplein Zuid 10, Nijmegen, 6525GA, The Netherlands.
20 Department of Medical Oncology, Amsterdam UMC, VU University Medical Center, Cancer Center Amsterdam, De Boelelaan 1118, Amsterdam, 1081HZ, The Netherlands. [email protected].