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Damrich-Grampp B, Seidl A, Weigt A, Lang M, Hümmer B, Hahn HL.Damrich-Grampp B, et al. Among authors: hahn hl.Pneumologie. 1990 Feb;44 Suppl 1:420-1.Pneumologie. 1990.PMID: 2367425German.
Lang M, Hansen D, Hahn HL.Lang M, et al. Among authors: hahn hl.Agents Actions Suppl. 1987;21:245-52. doi: 10.1007/978-3-0348-7451-9_22.Agents Actions Suppl. 1987.PMID: 3479001No abstract available.