@article{68236,
  author = {Jeanice Brown and Katherine Sharpless and Mary Satterfield and S. Mitvalsky and M. Roman and J. Yen},
  title = {Determination of Caffeine and Caffeine-Related Metabolites in Ephedra-Containing Standard Reference Materials Using Liquid Chromatography with Absorbance Detection and Tandem Mass Spectrometry},
  year = {2007},
  number = {90},
  month = {2007-11-01},
  publisher = {Journal of Aoac International},
  language = {en},
}