Published on in Vol 6, No 1 (2014):
1 Institute of Public Health, Heidelberg University, Heidelberg, Germany.
2 Fudan University, Shanghai, China.
3 Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei, China.
4 Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei, China; Karolinska Institutet, Stockholm, Sweden.
5 Karolinska Institutet, Stockholm, Sweden.
6 Institute of Public Health, Heidelberg University, Heidelberg, Germany; Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.