Andrographis paniculata extracts and major constituent diterpenoids inhibit growth of intrahepatic cholangiocarcinoma cells by inducing cell cycle arrest and apoptosis - Suriyo, T; Pholphana, N; Rangkadilok, N; Thiantanawat, A; Watcharasit, P; Satayavivad, J (Planta Med, 2014)