About the Authors
Department of Molecular Genetics & Microbiology, University of New Mexico School of Medicine, Albuquerque, New Mexico, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: ZS MAO AD. Performed the experiments: ZS AD. Analyzed the data: ZS MAO AD. Contributed reagents/materials/analysis tools: MAO. Wrote the paper: ZS MAO AD.