[Several critical issues about response to A (H1N1) influenza].
Zeng
Guang
G
Chinese Field Epidemiology Training Program, Chinese Centers for Disease Control and Prevention, 100050, China. zeng4605@vip.sina.com
D002681:China; D003140:Communicable Disease Control / Q000379:methods*; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000517:prevention & control* / Q000821:virology