Observation on circadian rhythm characteristics of patients with acute exacerbation of chronic obstructive pulmonary disease
YU Li-jie;XIAO He-mei;YANG Guo-hong;WU Ying;YUAN Lan-suo;CUI Chao-bo;LIU Shu-hong
Clinical Focus . 2012, (13): 1121 -1.12211e+007 .