PT - JOURNAL ARTICLE AU - R D Montgomery TI - Peptic ulcer and non-steroidal anti-inflammatory agents AID - 10.1136/gut.28.1.111 DP - 1987 Jan 01 TA - Gut PG - 111--111 VI - 28 IP - 1 4099 - http://gut.bmj.com/content/28/1/111.1.short 4100 - http://gut.bmj.com/content/28/1/111.1.full SO - Gut1987 Jan 01; 28