Respondent characteristics.

1In colorectal patients panitumimab (immunotherapy) is a well-accepted approach in the third line [42]; in a selection of breast cancer patients, immunotherapy can be the accepted approach, frequently combined with chemotherapy.2The interviewer did not introduce the topic of euthanasia herself: the topic was however frequently mentioned in the context of patients’ (end-of-life) wishes.3All patients were asked whether they were having a religious affiliation; during the interview the importance of religion or other life stances sometimes came up, also.4Assessed June 2013.