1. Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States, Department of Bioengineering and Howard Hughes Medical Institute, Stanford University, Stanford, California 94305, United States, Department of Anesthesia and Perioperative Care, San Francisco General Hospital, San Francisco, California 94143, United States, and Department of Cellular and Molecular Pharmacology and Howard Hughes Medical Institute, University of California San Francisco, San Francisco,...