Metabolomics test materials for quality control: A study of a urine materials suite

Daniel W. Bearden, David A. Sheen, Yamil Simón-Manso, Bruce A. Benner, Werickson F.C. Rocha, Niksa Blonder, Katrice A. Lippa, Richard D. Beger, Laura K. Schnackenberg, Jinchun Sun, Khyati Y. Mehta, Amrita K. Cheema, Haiwei Gu, Ramesh Marupaka, G. A. Nagana Gowda, Daniel Raftery