Cardiovascular effects of 14-deoxy-11,12-didehydroandrographolide and Andrographis paniculata extracts. - Yoopan,N.; Thisoda,P.; Rangkadilok,N.; Sahasitiwat,S.; Pholphana,N.; Ruchirawat,S.; Satayavivad,J. (Planta Med, 2007)