Chemical fingerprint analysis and characterization of monacolins, pigments, citrinin, sudan red G from red yeast rice samples using liquid chromatography-accurate QToF mass spectrometry - Avula, B; Sagi, S; Wang, YH; Feng, W; Wang, M; Zweigenbaum, J; Shuangcheng, M; Khan, IA (Planta Medica, 2014)