Kim, Jong Woo MD1; Kim, Jin Hyoung MD, PhD1
1Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
Correspondence: Jin Hyoung Kim, MD, PhD, Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul 138-736, Korea. E-mail: [email protected]
The authors declare no conflict of interest.
doi: 10.1038/ajg.2014.365
