title: Balancing benefits and harms in health care: observational data on harm are already included in systematic reviews.
mesh_terms: D019317:Evidence-Based Medicine; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D012196:Review Literature as Topic; D018570:Risk Assessment; D014612:Vaccines / Q000009:adverse effects
chemical_list: D014612:Vaccines