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Goetze E, Thiem DGE, Gielisch M, Al-Nawas B, Kämmerer PW.Goetze E, et al.Chirurg. 2020 Mar;91(3):216-221. doi: 10.1007/s00104-019-01103-8.Chirurg. 2020.PMID: 31965197Review.German.