California Institute of Technology - Division of Chemistry and Chemical Engineering, University of California, Los Angeles (UCLA) - Department of Medicine, California Institute of Technology - Division of Biology and Biological Engineering, California Institute of Technology - Division of Biology and Biological Engineering, California Institute of Technology - Division of Chemistry and Chemical Engineering, California Institute of Technology - Division of Chemistry and Chemical Engineering, California Institute of Technology - Division of Biology and Biological Engineering, California Institute of Technology - Division of Chemistry and Chemical Engineering, California Institute of Technology - Division of Chemistry and Chemical Engineering, California Institute of Technology - Division of Chemistry and Chemical Engineering, California Institute of Technology - Division of Biology and Biological Engineering, California Institute of Technology - Division of Chemistry and Chemical Engineering, California Institute of Technology - Division of Chemistry and Chemical Engineering, University of California, Los Angeles (UCLA) - Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles (UCLA) - Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles (UCLA) - Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, California Institute of Technology - Division of Biology and Biological Engineering, University of California, Los Angeles (UCLA) - Department of Medicine and California Institute of Technology - Division of Chemistry and Chemical Engineering