TY - JOUR T1 - Letters to the editor JF - Clinical Medicine JO - Clin Med SP - 499 LP - 499 DO - 10.7861/clinmedicine.15-5-499a VL - 15 IS - 5 AU - Ian Aston AU - Richard Heron Y1 - 2015/10/05 UR - http://www.rcpjournals.org/content/15/5/499.2.abstract ER -