title: Letter: 'Circulating levels of lignocaine after perio-oral injections'.
mesh_terms: D000766:Anesthesia, Dental; D000772:Anesthesia, Local; D006801:Humans; D007271:Injections, Intradermal; D008012:Lidocaine / Q000008:administration & dosage / Q000009:adverse effects / Q000097:blood*; D009055:Mouth
chemical_list: D008012:Lidocaine