About the Authors
Department of Genetics, Louisiana State University Health Sciences Center, New Orleans, Louisiana, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: SD EG. Performed the experiments: SD. Analyzed the data: SD EG. Contributed reagents/materials/analysis tools: MCS AB EG. Wrote the paper: SD EG. Critical review of the manuscript: MCS, AB.