PT - JOURNAL ARTICLE AU - Thomas Lewis TI - FOREWORD AID - 10.1136/hrt.1.1.1 DP - 1939 Jan 01 TA - British Heart Journal PG - 1--2 VI - 1 IP - 1 4099 - http://heart.bmj.com/content/1/1/1.short 4100 - http://heart.bmj.com/content/1/1/1.full SO - Heart1939 Jan 01; 1