537
Participants
Start Date
August 31, 2011
Primary Completion Date
March 31, 2012
Study Completion Date
June 30, 2012
hepatitis B vaccine
hepatitis B vaccine with 5ug,10ug,20ug,60ug HBsAg
Xicheng Centers For Disease Prevention & Control, Xicheng District
Chifeng Centers For Disease Prevention & Control, Chifeng
Beijing Municipal Science & Technology Commission
OTHER
Wu Jiang
OTHER_GOV