TY - JOUR T1 - Personal medical information cards JF - Drug and Therapeutics Bulletin JO - Drug Ther Bull SP - 18 LP - 20 DO - 10.1136/dtb.9.5.18 VL - 9 IS - 5 A2 - , Y1 - 1971/02/26 UR - http://dtb.bmj.com/content/9/5/18.abstract N2 - Continuity of medical care was once relatively simple and mattered less when therapies were not so specific and incisive. Today a patient on prolonged therapy could be exposed to a considerable number of potentially dangerous interactions should any physician, surgeon or anaesthetist alter the treatment when ignorant of the previous therapy. This is a particular hazard during holidays, dental treatment and accident surgery. The differential diagnosis of an unconscious patient in the hospital accident department is made more difficult by a lack of knowledge about his previous history and therapy. In the absence of authentic information mistakes are difficult to avoid. ER -