title: Author's reply to Mathioudakis and colleagues.
authors: Department of Primary Care and Public Health Sciences, King's College London, Guy's Campus, London SE1 1UL, UK.
authors: Martin C
authors: MC
authors: Gulliford
mesh_terms: D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D001424:Bacterial Infections / Q000175:diagnosis / Q000188:drug therapy*; D015415:Biomarkers / Q000097:blood; D002116:Calcitonin / Q000097:blood*; D011307:Drug Prescriptions / Q000706:statistics & numerical data*; D004739:England; D006801:Humans; D011320:Primary Health Care; D012141:Respiratory Tract Infections / Q000097:blood / Q000175:diagnosis / Q000188:drug therapy*
chemical_list: D000900:Anti-Bacterial Agents; D015415:Biomarkers; D002116:Calcitonin