title: High-performance isotope labeling for profiling carboxylic acid-containing metabolites in biofluids by mass spectrometry.
authors.affiliation: Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2 Canada.
authors.forename: Kevin
authors.initials: K
authors.lastname: Guo
authors.forename: Liang
authors.initials: L
authors.lastname: Li