Keep up to date with the latest news and content from BMC Health Services Research and BioMed Central.
Jianqian Chao, Yimin Wang, Hui Xu, Qing Yu, Lili Jiang, Lin Tian, Wenyuan Xie and Pei Liu*
Corresponding author: Pei Liu email@example.com
BMC Health Services Research 2012, 12:449
Fields marked * are required
BioMed Central Ltd unless otherwise stated. Part of Springer Science+Business Media.