title: Prevalence of hepatitis B surface antigen and risk factors of HBV infection in a sample of healthy mothers and their infants in Sana'a, Yemen.
authors.affiliation: Department of Medical Microbiology, Faculty of Medicine and Health Sciences, University of Sana'a, Sana'a, Yemen.
authors.forename: H
authors.initials: H
authors.lastname: Al-Shamahy