Identification of honokiol metabolites in rats by the method of stable isotope cluster technique and ultra-high performance liquid chromatography/quadrupole-time-of-flight mass spectrometry - Lai, H; Tang, M; Liu, J; Dong, Y; Qiu, N; Li, S; Ma, L; Yang, J; Song, H; Zhang, Y; Peng, A; Chen, L (J Chromatogr B Analyt Technol Biomed Life Sci, 2013)