@article{Zhong2015,
author = {Zhong, G. and Wang, Y. and Zhang, Y. and Guo, J.J. and Zhao, Y.},
title= {Smoking is associated with an increased risk of dementia: A meta-analysis of prospective cohort studies with investigation of potential effect modifiers},
year = {2015},
doi = {10.1371/journal.pone.0118333},
volume = {10},
number = {3},
pages = {e0118333},
}