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Warth M, Koehler F, Aguilar-Raab C, Bardenheuer HJ, Ditzen B, Kessler J.Warth M, et al.Eur J Cancer Care (Engl). 2020 Jul;29(4):e13249. doi: 10.1111/ecc.13249. Epub 2020 May 21.Eur J Cancer Care (Engl). 2020.PMID: 32436277Clinical Trial.