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Hartmann M, Petzoldt D.Hartmann M, et al. Among authors: petzoldt d.Hautarzt. 1997 Mar;48(3):206-13; quiz 213.Hautarzt. 1997.PMID: 9182095Review.German.No abstract available.
Hartmann M, Petzoldt D.Hartmann M, et al. Among authors: petzoldt d.Hautarzt. 2000 Mar;51(3):159-63. doi: 10.1007/s001050051097.Hautarzt. 2000.PMID: 10789076German.