Nau, RolandRolandNauChristen, Hans-JuergenHans-JuergenChristenEiffert, HelmutHelmutEiffert2018-11-072018-11-072009https://resolver.sub.uni-goettingen.de/purl?gro-2/56698525Higher Dosage at Later Stages Replyjournal_article10.3238/arztebl.2009.0525000271461400006