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Schwab M, Brindl N, Studier-Fischer A, Tu T, Gsenger J, Pilgrim M, Friedrich M, Frey PE, Achilles C, Leuck A, Bürgel T, Feisst M, Klose C, Tenckhoff S, Dörr-Harim C, Mihaljevic AL.Schwab M, et al. Among authors: gsenger j.Trials. 2020 Mar 23;21(1):293. doi: 10.1186/s13063-020-4220-8.Trials. 2020.PMID: 32293519Free PMC article.Clinical Trial.