環境衛生研究所;Institute of Environmental HealthSUNG, FUNG-CHANGFUNG-CHANGSUNG2008-09-032018-06-302008-09-032018-06-302002http://ntur.lib.ntu.edu.tw//handle/246246/81742en-USLIFE TIME OCCUPATION AND RISK OF COGNITIVE IMPAIRMENT AMONG THE ELDERLYjournal article