title: Was the mass vaccination effective during the influenza pandemic 2009-2010 in Korea?
authors.affiliation: Editor-in-Chief, Dean, Professor, Osong Public Health and Research Perspectives,Osong, South Korea.
authors.forename: Hae-Wol
authors.initials: HW
authors.lastname: Cho
authors.forename: Chaeshin
authors.initials: C
authors.lastname: Chu