About the Authors

Xiaofei Wang

rwahl@jhmi.edu (RW); xfwang2002@yahoo.com (XW)

Affiliation The Russell H. Morgan Department of Radiology and Radiological Science, Division of Nuclear Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Richard Wahl

rwahl@jhmi.edu (RW); xfwang2002@yahoo.com (XW)

Affiliation The Russell H. Morgan Department of Radiology and Radiological Science, Division of Nuclear Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XW RW. Performed the experiments: XW. Analyzed the data: XW. Contributed reagents/materials/analysis tools: RW. Wrote the paper: XW.