APA (7th ed.) Citation

Liu, D., Ma, Q., Zuo, M., Niu, Y., Wang, J., & Yan, G. Association of 3-year change in frailty index with risk of all-cause mortality among older Chinese population: A national cohort study. BMC.

Chicago Style (17th ed.) Citation

Liu, Dechen, Qianqian Ma, Mingyu Zuo, Yuqi Niu, Jinjin Wang, and Guoli Yan. Association of 3-year Change in Frailty Index with Risk of All-cause Mortality Among Older Chinese Population: A National Cohort Study. BMC.

MLA (9th ed.) Citation

Liu, Dechen, et al. Association of 3-year Change in Frailty Index with Risk of All-cause Mortality Among Older Chinese Population: A National Cohort Study. BMC.