Keep up to date with the latest news and content from BMC Public Health and BioMed Central.
Chang-hui Xiong, Yan Yan*, Zhen Liao, Shi-hui Peng, Hai-rong Wen, Yan-xia Zhang, Shu-hua Chen, Jian Li, Hai-ying Chen, Xiao-wu Feng, Hui-qing Yao, Li Huang and Li Zhang
Corresponding author: Yan Yan firstname.lastname@example.org
BMC Public Health 2014, 14:111
These numbers are accesses on BioMed Central websites only, and an underestimate of total usage. More information
BioMed Central Ltd unless otherwise stated. Part of Springer Science+Business Media.