Shi X, et al. J Pharm Biomed Anal. 2013 Sep 7;88C:207-215
Arai MA, et al. Mol Biosyst. 2013 Oct;9(10):2489-97
Zhang J, et al. Biomed Chromatogr. 2011 Apr;25(4):450-7
Wen XD, et al. J Chromatogr B Analyt Technol Biomed Life Sci. 2008 Apr 1;865(1-2):99-105