Institution: | 1. Department of Biology, University of Minnesota Duluth, , Duluth, MN, 55812 USA;2. Department of Mathematics & Statistics, University of Minnesota Duluth, , Duluth, MN, 55812 USA;3. Department of Chemistry, The College of St Scholastica, , Duluth, MN, 55811 USA;4. Department of Biochemistry, Biophysics & Molecular Biology, Iowa State University, , Ames, IA, 50011 USA;5. W.M. Keck Metabolomics Research Laboratory, Iowa State University, , Ames, IA, 50011 USA |