PT - JOURNAL ARTICLE ED - , TI - Review: on-demand maintenance therapy with proton pump inhibitors is as effective as continuous therapy for non-erosive GORD AID - 10.1136/ebm.12.6.177 DP - 2007 Dec 01 TA - Evidence Based Medicine PG - 177--177 VI - 12 IP - 6 4099 - http://ebm.bmj.com/content/12/6/177.short 4100 - http://ebm.bmj.com/content/12/6/177.full SO - Evid Based Med2007 Dec 01; 12