1. Division
of Physical Biology and Bioimaging Centre, Shanghai Synchrotron Radiation
Facility, CAS Key Laboratory of Interfacial Physics and Technology,
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
2. The Johns Hopkins University, Baltimore, Maryland 21211, United States
3. UCB Pharm, Slough SL1 3WE, Berks U.K.