PT - JOURNAL ARTICLE AU - M J S Langman TI - Peptic ulcer and its drug causations. The role of non-steroidal anti-inflammatory drugs AID - 10.1136/gut.28.2.231 DP - 1987 Feb 01 TA - Gut PG - 231--231 VI - 28 IP - 2 4099 - http://gut.bmj.com/content/28/2/231.short 4100 - http://gut.bmj.com/content/28/2/231.full SO - Gut1987 Feb 01; 28