Disability Transition Regularity in Chinese Older Persons:an Analysis Using a Multi-state Markov Model  
TAO Tao,ZHOU Ying,DAI Lingyan,CHEN Weiwu,YANG Zhipeng,LI Yusi,GUO Zhuoyuan,MA Jinxiang
Chinese General Practice . 2019, (10): 1165 -1170 .  DOI: 10.12114/j.issn.1007-9572.2019.10.007