title: Q fever endocarditis in Northern Ireland.
mesh_terms: D000328:Adult; D000368:Aged; D004697:Endocarditis, Bacterial / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009660:Northern Ireland; D011778:Q Fever / Q000453:epidemiology*