我国老年人慢性病共病现状及模式研究
黎艳娜,王艺桥
Prevalence and Patterns of Multimorbidity among Chinese Elderly People 
LI Yanna,WANG Yiqiao
中国全科医学 . 2021, (31): 3955 -3962 .  DOI: 10.12114/j.issn.1007-9572.2021.00.295