About the Authors

Insuk Sohn

Affiliation Samsung Cancer Research Institute, Seoul, Korea

Chang Ohk Sung


Affiliation Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: IS COS. Analyzed the data: IS COS. Contributed reagents/materials/analysis tools: IS COS. Wrote the paper: IS COS.