Sesquiterpene lactones from Lychnophora pohlii: neutrophil chemiluminescence inhibition and free radical scavenger activity - Kanashiro, Alexandre; Kabeya, Luciana Mariko; Grael, Cristiane Fernanda Fuzer; Jordão, Christiane Oliveira; Azzolini, Ana Elisa Caleiro Seixas; Lopes, João Luis Callegari; Lucisano-Valim, Yara Maria (Journal of Pharmacy and Pharmacology, 2006)