1. Institute of Cancer Biology and Drug Screening, School of Life Sciences, Lanzhou University, Lanzhou, Gansu�730000, P.R.�China
2. Institution of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu�730000, P.R. China
3. Yumen Tuopu Science and Technology Development Co., Ltd., Yumen, Gansu�735211, P.R.�China