1. Mass Spectrometry Research Center, Vanderbilt University School of Medicine, 37232, Nashville, TN, USA
2. Department of Medicine, National Resource for Imaging Mass Spectrometry, Brigham and Women’s Hospital/Harvard Medical School, 65 Landsdowne St, 02139, Cambridge, MA, USA
3. Departments of Biochemistry, Chemistry, Pharmacology, and Medicine and the National Resource for Imaging Mass Spectrometry, Vanderbilt University, 37232, Nashville, TN, USA