3,308
Participants
Start Date
August 31, 2011
Primary Completion Date
November 30, 2011
Study Completion Date
December 31, 2012
recombinant hepatitis b vaccine
0.5ml intramuscular
Aleph influenza vaccine
0.5ml intramuscular
Xinglong County Center for Disease Control and Prevention, Zhangjiakou
Zhuolu County Center for Disease Control and Prevention, Zhangjiakou
Beijing Center for Disease Control and Prevention
OTHER_GOV