PT - JOURNAL ARTICLE AU - Hedley CA Emsley TI - Response AID - 10.7861/clinmedicine.15-2-212b DP - 2015 Apr 01 TA - Clinical Medicine PG - 212--212 VI - 15 IP - 2 4099 - http://www.rcpjournals.org/content/15/2/212.3.short 4100 - http://www.rcpjournals.org/content/15/2/212.3.full SO - Clin Med2015 Apr 01; 15