TY - JOUR TI - Further sesquiterpene lactones from viguiera robusta and the potential anti-inflammatory activity of a heliangolide: inhibition of human neutrophil elastase release PY - 2008 AU - Arakawa, Nilton Syogo AU - Schorr, Karin AU - Ambrósio, Sérgio Ricardo AU - Merfort, Irmgard AU - Costa, Fernando Batista da T2 - Zeitschrift fuer Naturforschung. Section C SN - 0939-5075 PP - tubingen VL - 63 IS - 7-8 SP - 533-538 ER -