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Tacke M, Marhöfer D, Althani H, Müller-Bunz H.Tacke M, et al.Acta Crystallogr E Crystallogr Commun. 2019 Oct 22;75(Pt 11):1657-1663. doi: 10.1107/S2056989019013719. eCollection 2019 Nov 1.Acta Crystallogr E Crystallogr Commun. 2019.PMID: 31709086Free PMC article.