California Institute of Technology (Caltech) - Division of Biology and Biological Engineering, California Institute of Technology (Caltech) - Division of Biology and Biological Engineering, The Scripps Research Institute - Department of Molecular Medicine, University of California, San Diego (UCSD) - Department of Pediatrics, University of California, San Diego (UCSD) - Collaborative Mass Spectrometry Innovation Center, California Institute of Technology (Caltech) - Division of Biology and Biological Engineering, California Institute of Technology (Caltech) - Division of Biology and Biological Engineering, California Institute of Technology (Caltech) - Division of Biology and Biological Engineering, California Institute of Technology (Caltech) - Division of Biology and Biological Engineering, California Institute of Technology (Caltech) - Division of Biology and Biological Engineering, California Institute of Technology (Caltech) - Division of Biology and Biological Engineering, The Scripps Research Institute - Department of Molecular Medicine, The Scripps Research Institute - Department of Molecular Medicine, University of California, San Diego (UCSD) - Department of Pediatrics, The Scripps Research Institute - Department of Molecular Medicine, University of California, San Diego (UCSD) - Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego (UCSD) - Department of Pediatrics, California Institute of Technology (Caltech) - Division of Biology and Biological Engineering and California Institute of Technology (Caltech) - Division of Biology and Biological Engineering