PT - JOURNAL ARTICLE ED - , TI - Glyceryl trinitrate ointment increased healing and decreased pain in patients with chronic anal fissure AID - 10.1136/ebm.1997.2.105 DP - 1997 Aug 01 TA - Evidence Based Medicine PG - 105--105 VI - 2 IP - 4 4099 - http://ebm.bmj.com/content/2/4/105.short 4100 - http://ebm.bmj.com/content/2/4/105.full SO - Evid Based Med1997 Aug 01; 2