1. Systematic Review: Patterns of Proton Pump Inhibitor Use and Adherence in Gastroesophageal Reflux Disease 
A. Pali S. Hungin, Catherine Hill, Michael Molloy–Bland, Anan Raghunath 
Clinical Gastroenterology and Hepatology 
Volume 10, Issue 2, Pages (February 2012)
DOI: /j.cgh
Copyright © 2012 AGA Institute Terms and Conditions

2. Figure 1 Flow diagram of the study search and selection process.
Clinical Gastroenterology and Hepatology  , DOI: ( /j.cgh )
Copyright © 2012 AGA Institute Terms and Conditions