1. Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, P. R. China
2. Key Lab of Training, Monitoring and Intervention of Aquatic Sports of General Administration of Sport of P. R. China, Faculty of Physical Education, Jiangxi Normal University, Nanchang, P. R. China
3. College of Life Science and Technology, Minnan Normal University, Fujian, P. R. China
4. Department of Medicine, University of California San Diego, La Jolla, California, USA