Antiplasmodial Activity of Labdanes from Aframomum latifolium and Aframomum sceptrum - Duker-Eshun, George; Jaroszewski, Jerzy W; Asomaning, William A; Oppong-Boachie, Francis; Olsen, Carl Erik; Christensen, S Brøgger (Planta Medica, 2002)