Mechanism and Stem-Cell Activity of 5-Carboxycytosine Decarboxylation Determined by Isotope Tracing. - Schiesser, Stefan; Hackner, Benjamin; Pfaffeneder, Toni; Müller, Markus; Hagemeier, Christian; Truss, Matthias; Carell, Thomas (Angewandte Chemie International Edition, 2012)