About the Authors
The Buck Institute for Research on Aging, Novato, California, United States of America
Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: JPM BEY IA-R AEB SDM JB LME REH. Performed the experiments: JPM BEY IA-R AEB MS EK MdH FD CT JH JG LME. Analyzed the data: JPM BEY IA-R AEB FD JG SDM JB LME REH. Contributed reagents/materials/analysis tools: SDM JB LME REH. Wrote the paper: JPM BEY IA-R AEB JB LME REH.