Rongjun Sun
Rongjun Sun
![142nd APHA Annual Meeting and Exposition (November 15 - November 19, 2014): http://www.apha.org/events-and-meetings/annual](images/banner.jpg)
associate professor
Cleveland State University
Cleveland,
OH
USA
r.sun32@csuohio.edu
5001.0 Re-Examining the Role of Engaging in Activities: Does Its Effect on Mortality Change by Age among the Elderly?