title: Influenza vaccination and warfarin or theophylline toxicity in nursing-home residents.
mesh_terms: D000368:Aged; D004844:Epistaxis / Q000139:chemically induced; D005260:Female; D006417:Hematuria / Q000139:chemically induced; D006801:Humans; D007252:Influenza Vaccines / Q000009:adverse effects*; D009735:Nursing Homes; D013806:Theophylline / Q000009:adverse effects*; D014859:Warfarin / Q000009:adverse effects*
chemical_list: D007252:Influenza Vaccines; D014859:Warfarin; D013806:Theophylline