1. Center for Drug Metabolism & Pharmacokinetics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, PR China
2. Waters Corporation, 34 Maple Street, Milford, MA 01757, USA
3. Center for Drug Metabolism & Pharmacokinetics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, PR China.