Afternoon nap and nighttime sleep with risk of micro- and macrovascular disease in middle-aged and elderly population. (6th May 2015) - Chen, Gang; Tang, Kaka; Chen, Feng; Wei, Shichao; Lin, Fenghui; Yao, Jin; Chen, Ling; Huang, Huibin; Liang, Jixing; Li, Liantao; Lin, Wei; Lin, Lixiang; et al.