About the Authors
Howard Hughes Medical Institute, Stanford University, Palo Alto, California, United States of America
Department of Population Health Sciences, University of Wisconsin, Madison, Wisconsin, United States of America
The authors have declared that no competing interests exist.
ST, TY, and EM designed the study. ST, DA, TY, and EM analyzed the data. ST, LL, and EM performed the experiments. TY enrolled patients. ST, LL, DA, TY, and EM contributed to writing the paper.