Anti-inflammatory activities of two flavanones, sigmoidin A and sigmoidin B, from Erythrina sigmoidea. - Njamen,D.; Mbafor,J.T.; Fomum,Z.T.; Kamanyi,A.; Mbanya,J.C.; Recio,M.C.; Giner,R.M.; Máñez,S.; Ríos,J.L. (Planta Med, 2004)