1. Association of Heartburn During Pregnancy With the Risk of Gastroesophageal Reflux Disease 
Serhat Bor, Gul Kitapcioglu, Peter Dettmar, Tim Baxter 
Clinical Gastroenterology and Hepatology 
Volume 5, Issue 9, Pages (September 2007)
DOI: /j.cgh
Copyright © 2007 AGA Institute Terms and Conditions

2. Figure 1 Prevalence of GERD symptoms (%).
Clinical Gastroenterology and Hepatology 2007 5, DOI: ( /j.cgh )
Copyright © 2007 AGA Institute Terms and Conditions