1. State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai, People's Republic of China.
2. University of Alberta and KMT Hepatech, Edmonton, Alberta, Canada.
3. Department of Medicine and Pharmacology, University of Kansas Medical Center, Kansas City, Kansas.
4. Institute of Medical Biology, Chinese Academy of Medical Science, Peking Union Medical College, Kunming, People's Republic of China.