Helfand, M <br/><br/>
Community-based research--a framework for problem formulation: the case of upper endoscopy for gastroesophageal reflux disease.  [electronic resource] 

 -  Medical decision making : an international journal of the Society for Medical Decision Making   
 - 315-23 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>0272-989X 
<br/><br/><label>Standard No.: </label>10.1177/0272989X9701700308  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Aged<br/>Decision Support Techniques<br/>Decision Trees<br/>Endoscopy, Digestive System<br/>Evidence-Based Medicine<br/>Female<br/>Gastroesophageal Reflux--diagnosis<br/>Humans<br/>Male<br/>Middle Aged<br/>Practice Guidelines as Topic<br/>Treatment Outcome