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Hartlapp JH, Illiger HJ.Hartlapp JH, et al.MMW Munch Med Wochenschr. 1983 Mar 4;125(9):172-5.MMW Munch Med Wochenschr. 1983.PMID: 6405255German.No abstract available.
Illiger HJ, Hartlapp JH.Illiger HJ, et al. Among authors: hartlapp jh.MMW Munch Med Wochenschr. 1980 Oct 31;122(44):1544-6.MMW Munch Med Wochenschr. 1980.PMID: 6779112German.No abstract available.