1. Systems Biology Research Group, Department of Bioengineering, University of California, San Diego, San Diego, California, USA
2. Bioinformatics and Systems Biology Program, University of California, San Diego, San Diego, California, USA
3. Department of Pediatrics, University of California, San Diego, San Diego, California, USA
4. Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet, Kongens, Lyngby, Denmark