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Walz MK, Albrecht KH, Niebel W, Eigler FW.Walz MK, et al. Among authors: eigler fw.Dtsch Med Wochenschr. 1992 Jun 12;117(24):927-34. doi: 10.1055/s-2008-1062393.Dtsch Med Wochenschr. 1992.PMID: 1600867Review.German.