title: A question of payment.
authors.forename: P
authors.initials: P
authors.lastname: Kerrigan
mesh_terms: D006506:Hepatitis A / Q000517:prevention & control*; D006801:Humans; D007114:Immunization / Q000191:economics*; D010816:Physician Incentive Plans / Q000191:economics; D013222:State Medicine / Q000191:economics; D006113:United Kingdom