Influencing Factors of Health Services Utilization among the Elderly in Elderly Care Institutions:a Study Using Andersen's Behavior Model 
YANG Xi,LI Juanping,ZHENG Kai,HE Pingting,LI Xuefeng,XIONG Linping,WANG Ying
Chinese General Practice . 2019, (23): 2841 -2849 .  DOI: 10.12114/j.issn.1007-9572.2019.00.079