van Eijk M, de Vries DH, Sonke GS, et al. Friendship during patients' stable and unstable phases of incurable cancer: a qualitative interview study. BMJ Open 2022; 12:e058801. doi: 10.1136/bmjopen-2021-058801.

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BMJ has received notification from Professor Gabe Sonke, disputing the accuracy of this article. Professor Sonke has stated that he did not write, review, or participate in any way with the production and submission of this manuscript.

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