Investigating the role and applicability of patient versions of guidelines in oncology and deriving recommendations for the development, dissemination and implementation of patient versions in Germany: protocol for multiphase study.

Ethical approval for the qualitative parts of the project was given by the Ethics Committee of Witten/Herdecke University (number 160/2021). Participants will be required to provide informed consent. The project findings will be published in peer-reviewed journals and presented at scientific conferences.