title: Correspondence concerning the article No endogenous ouabain is detectable in human plasma by ultra-sensitive UPLC-MS/MS. Clin Chim Acta. 2014;431:87-92 by S. Baecher et al.
authors.affiliation: Hospital of the University of Munich, Germany, Institute of Laboratory Medicine, Marcioninistr. 15, DE 81377 Muenchen, Germany. Electronic address: Michael.Vogeser@med.uni-muenchen.de.
authors.forename: Michael
authors.initials: M
authors.lastname: Vogeser
authors.affiliation: Hospital of the University of Munich, Germany, Institute of Laboratory Medicine, Marcioninistr. 15, DE 81377 Muenchen, Germany.
authors.forename: Silvia
authors.initials: S
authors.lastname: Baecher
mesh_terms: D002316:Cardiotonic Agents / Q000097:blood*; D006801:Humans; D010042:Ouabain / Q000097:blood*
chemical_list: D002316:Cardiotonic Agents; D010042:Ouabain
keywords: Mass spectrometry; Ouabain