1. State Key
Laboratory of Magnetic Resonance and Atomic and Molecular Physics,
Wuhan Centre for Magnetic Resonance, Wuhan Institute of Physics and
Mathematics, Chinese Academy of Sciences, Wuhan 430071, P. R. China
2. Graduate School of the Chinese Academy of Sciences, Beijing 100049, P. R. China
3. College of Life Sciences, Northwest University, Xi’an 710069, P. R. China
4. Department of Physiology and Pathophysiology, Peking University, Beijing 100191, P. R. China