title: Measuring and Observing Positive And Negative Externalities Caused By Vaccines: Do We Have The Right Assessment Approach Available?
authors.affiliation: Independent researcher, Kiowa, CO, USA.
authors.forename: C
authors.initials: C
authors.lastname: Lefebvre
authors.affiliation: Navigha, Tervuren, Belgium.
authors.forename: A
authors.initials: A
authors.lastname: Terlinden
authors.affiliation: GlaxoSmithKline Vaccines, Wavre, Belgium.
authors.forename: B
authors.initials: B
authors.lastname: Standaert