title: Influenza vaccine efficacy.
authors: Children's & Women's Health Centre of British Columbia, Vancouver, BC.
authors: Nevio
authors: N
authors: Cimolai
mesh_terms: D003695:Delivery of Health Care / Q000458:organization & administration*; D006291:Health Policy; D006801:Humans; D015397:Program Evaluation; D014611:Vaccination / Q000331:legislation & jurisprudence*