Luo, J., Zhu, G., Zhao, Q., Guo, Q., Meng, H., Hong, Z., & Ding, D. (2013). Prevalence and Risk Factors of Poor Sleep Quality among Chinese Elderly in an Urban Community: Results from the Shanghai Aging Study. Public Library of Science.

Luo, Jianfeng, Guoxing Zhu, Qianhua Zhao, Qihao Guo, Haijiao Meng, Zhen Hong, và Ding Ding. Prevalence and Risk Factors of Poor Sleep Quality Among Chinese Elderly in an Urban Community: Results From the Shanghai Aging Study. Public Library of Science, 2013.

Luo, Jianfeng, et al. Prevalence and Risk Factors of Poor Sleep Quality Among Chinese Elderly in an Urban Community: Results From the Shanghai Aging Study. Public Library of Science, 2013.