title: What do we not know? What work is required?
authors.affiliation: Medical Economics Research Group, Munich, Germany.
authors.forename: T D
authors.initials: TD
authors.lastname: Szucs
mesh_terms: D017281:Cost of Illness; D003362:Cost-Benefit Analysis; D003625:Data Collection; D005060:Europe; D006291:Health Policy / Q000191:economics; D006801:Humans; D007252:Influenza Vaccines / Q000191:economics*; D007251:Influenza, Human / Q000191:economics* / Q000517:prevention & control