Community-based Health Support and Self-rated Health Status of the Elderly 
ZHANG Yunfan,CHEN Yingchun,GAO Hongxia,SU Dai,TAN Min,ZHANG Yan
Chinese General Practice . 2021, (31): 3971 -3978 .  DOI: 10.12114/j.issn.1007-9572.2021.00.306