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Reis HE, Gerards H, van Uelft R, Hoff A, Nasse U.Reis HE, et al. Among authors: gerards h.Med Welt. 1982 Dec 3;33(48):1737-40.Med Welt. 1982.PMID: 7154927German.No abstract available.
Schiewe U, Gerards HH.Schiewe U, et al. Among authors: gerards hh.MMW Fortschr Med. 1999 Dec 9;141(49-50):42.MMW Fortschr Med. 1999.PMID: 10726146German.No abstract available.