1. Key Laboratory of
Eco-environment-related Polymer Materials, Ministry of Education,
Key Laboratory of Polymer Materials of Gansu Province, College of
Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
2. School
of Basic Medical Sciences, Gansu University of Chinese Medicine, Lanzhou 730000, China
3. Institute
of Gansu Medical Science Research, Gansu Provincial Cancer Hospital, Lanzhou 730050, China