[1] Radboud University Nijmegen Medical Centre,Scientific Institute for Quality of Healthcare (IQ healthcare)
[2] East Comprehensive Cancer Centre,Division of Medical Oncology, Department of Internal Medicine
[3] Maastricht University Hospital,Department of Pulmonology
[4] Canisius Wilhelmina Hospital,Department of Otorhinolaryngology, Head and Neck Surgery
[5] Radboud University Nijmegen Medical Centre,Scientific Institute for Quality of Healthcare, 114 IQ healthcare
[6] Radboud University Nijmegen Medical Centre,undefined