title: Efficient postexposure prophylaxis by hepatitis A vaccine.
authors: Institut National de la Santé et de la Recherche Médicale,Unit 748 Strasbourg, France.
authors: Samira
authors: S
authors: Fafi-Kremer
authors: Françoise
authors: F
authors: Stoll-Keller
authors: Thomas F
authors: TF
authors: Baumert