1. Department of Pharmacology, School of Basic Medical Science, Beijing (Peking) University, Beijing, PR China;
2. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Beijing (Peking) University, Beijing, PR China;
3. Department of Chemical Biology, School of Pharmaceutical Sciences, Beijing (Peking) University, Beijing, PR China;
4. Department of Drug Metabolism & Pharmacokinetics (DMPK), Biogen, Cambridge, MA, USA