Part 1: Antiplasmodial, Cytotoxic, Radical Scavenging and Antioxidant Activities of Thai Plants in the Family Acanthaceae - Charoenchai, Panarat; Vajrodaya, Srunya; Somprasong, Winai; Mahidol, Chulabhorn; Ruchirawat, Somsak; Kittakoop, Prasat (Planta Medica, 2010)