Zhang Fu-Yi, Ge Man-Ling, Guo Zhi-Tong, Xie Chong, Yang Ze-Kun, Song Zi-Bo. Study of multiscale entropy model to evaluate the cognitive behavior of healthy elderly people based on resting state functional magnetic resonance imagingJ. Acta Physica Sinica, 2020, 69(10): 108703. DOI: 10.7498/aps.69.20200050