title: Hepatitis B and the sex ratio at birth: a comparative analysis of four populations.
authors.forename: A
authors.initials: A
authors.lastname: Chahnazarian
authors.forename: B S
authors.initials: BS
authors.lastname: Blumberg
authors.forename: W T
authors.initials: WT
authors.lastname: London
mesh_terms: D002353:Carrier State; D005191:Family Characteristics; D005260:Female; D005298:Fertility; D006509:Hepatitis B / Q000453:epidemiology*; D006515:Hepatitis B virus / Q000502:physiology; D006801:Humans; D008297:Male; D012744:Sex Ratio