Immuno & Safety Study of GSK Biologicals' Thio or Preservative Free Hepatitis B Vaccine in Subjects Aged 11-15 Yrs
Conditions
Interventions
- BIOLOGICAL: Engerix™-B (thiomersal-free) 20µg
- BIOLOGICAL: 10 μg Engerix™-B (preservative-free)
- BIOLOGICAL: placebo
Sponsor
GlaxoSmithKline