title: Swiss nasal flu vaccine linked to Bell's palsy.
mesh_terms: D000281:Administration, Intranasal; D020330:Bell Palsy / Q000209:etiology*; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage / Q000009:adverse effects*; D013557:Switzerland
chemical_list: D007252:Influenza Vaccines