PT - JOURNAL ARTICLE AU - Arnold Wald TI - Poor quality evidence to support the use of biofeedback for the treatment of functional constipation in adults AID - 10.1136/eb-2014-101875 DP - 2015 Apr 01 TA - Evidence Based Nursing PG - 55--55 VI - 18 IP - 2 4099 - http://ebn.bmj.com/content/18/2/55.short 4100 - http://ebn.bmj.com/content/18/2/55.full SO - Evid Based Nurs2015 Apr 01; 18