Differential and Stereoselective In Vitro Cytotoxicity of Eremophilane Sesquiterpenes of Petasites hybridus Rhizomes in Rat Hepatocytes - Bodensieck, Antje; Gaunitz, Frank; Gebhardt, Rolf; Danesch, Ulrich; Bauer, Rudolf (Planta Medica, 2011)