TY  - JOUR
AU  - Cheung, Felix
TI  - Public health: When swine flu first hit China
JA  - 
PY  - 2009/12/23/print
VL  - 
PB  - Nature Publishing Group
UR  - http://dx.doi.org/10.1038/nchina.2009.242
M3  - 10.1038/nchina.2009.242
N1  - 10.1038/nchina.2009.242
ER  -