1. Zhou, R., Zhuang, R., Huang, C.: Evolution and formation mechanism of population aging pattern in China. J. Geogr. 74(10), 2163–2177 (2019)
2. Song, J.: Evaluation and comparison of nutritional risk of stroke inpatients by different nutritional risk screening tools. Jilin Univ. 03, 64 (2019)
3. Long, Y.: Human motion prediction and human robot coordination control for lower extremity exoskeleton. Harbin Institute of Technology (2017)
4. Millot, P.: Designing human-machine cooperation systems. J. Phys. Chem. Lett. 3(9), 1094–1098 (2016)
5. Zhang, S., Li, X., Zhang, P.: UAV real-time path planning based on human-machine cooperation. J. Beijing Univ. Aeronaut. Astronaut. 43(4), 814–822 (2017)