Volatiles with antimicrobial activity from the roots of Greek Paeonia taxa - Papandreou, Vasiliki; Prokopios Magiatis; Chinou, Ioanna; Kalpoutzakis, Eleftherios; Skaltsounis, Alexios-Leandros; Tsarbopoulos, Anthony (Journal of ethnopharmacology, 2002)