Analysis of influenza surveillance in Liwan District, Guangzhou City, 2011
YANG Li-li, LI Tie-gang, LIU Hui, FAN Jian-wen, YANG Cui-hui, CAI Ming-wei
S China J Prev Med . 2013, (1): 43 -45 .  DOI: 10.13217/j.scjpm.2013.01.043