Institution: | [1]The Central Laboratory, Changchun Normal University, Changchun 130032, P. R. China [2]Laboratory of New Drug Research and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130021, P. R. China [3]Department of Endocrinology of China-Japan Union Hospital, Jilin University, Changchun 130033, P. R. China |