1 Department of Medicine, School of Medicine, University of California San Diego, San Diego, California, USA.
2 Department of Medicine, Autonomous University of Barcelona, Barcelona, Spain.
3 Center for Microbiome Innovation, Joan and Irwin Jacobs School of Engineering, University of California San Diego, San Diego, California, USA.
4 Department of Pediatrics, School of Medicine, University of California San Diego, San Diego, California, USA.
5 Bioinformatics and Systems Biology Program, University of California San Diego, San Diego, California, USA.
6 Department of Pharmacology, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, San Diego, California, USA.
7 Collaborative Mass Spectrometry Innovation Center, University of California San Diego, San Diego, California, USA.
8 Graduate Program in Biological Sciences, School of Biological Sciences, UCSD, Division of Biological Sciences, University of California San Diego, San Diego, California, USA.
9 Department of Psychiatry, University of California San Diego, San Diego, California, USA.
10 Department of Computer Science and Engineering, University of California San Diego, San Diego, California, USA.
11 Department of Bioengineering, University of California San Diego, San Diego, California, USA.
12 Department of Medicine, VA San Diego Healthcare System, San Diego, California, USA.