title: Flu vaccine without the needle.
mesh_terms: D000280:Administration, Inhalation; D000328:Adult; D000367:Age Factors; D002648:Child; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage* / Q000191:economics; D008875:Middle Aged
chemical_list: D007252:Influenza Vaccines