Screening for Anti-Inflammatory Activity of 12 Arnica (Asteraceae) Species Assessed by Inhibition of NF-κB and Release of Human Neutrophil Elastase - Ekenäs, Catarina; Zebrowska, Anna; Schuler, Barbara; Vrede, Tobias; Andreasen, Katarina; Backlund, Anders; Merfort, Irmgard; Bohlin, Lars (Planta Medica, 2008)