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Hiren N. Mistri; Arvind G. Jangid; Pranav S. Shrivastav. (2007). Liquid chromatography tandem mass spectrometry method for simultaneous determination of antidiabetic drugs metformin and glyburide in human plasma. , 45(1), 97–106. doi:10.1016/j.jpba.2007.06.003 
10.1016/j.jpba.2007.06.003