A maximum of 100 references is suggested. The sequential coding system is adopted, and all references should be numbered and listed in the order in which they are cited. We provide an EndNote style file based on our citation format for those who need it（please download from http://www.pibb.ac.cn/pibben/site/menu/20250328171849001）. The examples of references are followed.

Examples of references

Books

1 Sanderson R T. Chemical Bond and Bond Engergies. New York: Academic Press, 1976: 23-30

Journal

1 Thormberry N A, Lazebnik Y. Caspases: enemies within. Science, 1998, 281(5381): 1312-1316

2 Andrade F, Roy S, Nicholson D, et al. Granzyme B directly and efficiently cleaves several downstream caspase substrates: implications for CTL-induced apoptosis. Immunity, 1998, 8(4): 451-460

Theses

1 Jia M W. The study of protein structural class prediction and the study of TRS bending and flexibility[D]. Hohhot: Inner Mongolia University, 2001