About the Authors
Department of Biostatistics, Center of Statistical Genetics, University of Michigan, Ann Arbor, Michigan, 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: DJL SML. Performed the experiments: DJL. Analyzed the data: DJL. Contributed reagents/materials/analysis tools: DJL SML. Wrote the paper: DJL SML. Designed the software used in analysis: DJL.