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Gehr S, Kaiser T, Kreutz R, Ludwig WD, Paul F.Gehr S, et al. Among authors: ludwig wd.EPMA J. 2019 Nov 22;10(4):425-436. doi: 10.1007/s13167-019-00192-z. eCollection 2019 Dec.EPMA J. 2019.PMID: 31832116Free PMC article.Review.
Schott G, Gökbuget N, Pachl H, Ludwig WD.Schott G, et al. Among authors: ludwig wd.Z Evid Fortbild Qual Gesundhwes. 2011;105(9):657-64. doi: 10.1016/j.zefq.2011.01.006. Epub 2011 Feb 12.Z Evid Fortbild Qual Gesundhwes. 2011.PMID: 22152423German.
Schott G, Pachl H, Ludwig WD.Schott G, et al. Among authors: ludwig wd.Z Evid Fortbild Qual Gesundhwes. 2010;104(4):314-22. doi: 10.1016/j.zefq.2010.03.029.Z Evid Fortbild Qual Gesundhwes. 2010.PMID: 20701111German.
Ludwig WD, Hildebrandt M, Schott G.Ludwig WD, et al.Z Evid Fortbild Qual Gesundhwes. 2009;103(3):149-54. doi: 10.1016/j.zefq.2009.02.018.Z Evid Fortbild Qual Gesundhwes. 2009.PMID: 19554889German.