1. Department of Medicine; The George Washington University School of Medicine; Washington DC USA
2. Department of Physiology; The George Washington University School of Medicine; Washington DC USA
3. Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences & Comparative Medicine Centre; Peking Union Medical College; Beijing PR China
4. Department of Cardiology, Daping Hospital, The Third Military Medical University; Chongqing Institute of Cardiology; Chongqing 400042 PR China
5. Department of Pathology; The University of Virginia; Charlottesville VA USA