About the Authors
Pittsburgh Supercomputing Center, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America
Department of Radiological Sciences, University of Puerto Rico School of Medicine, San Juan, Puerto Rico, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: RRGM. Performed the experiments: AJR. Analyzed the data: AJR HBNJ RRGM. Contributed reagents/materials/analysis tools: AJR RRGM. Wrote the paper: AJR HBNJ RRGM.