1. Volume 135, Issue 1, Pages 72-81 (July 2008)
Effects of Estrogen With and Without Progestin and Obesity on Symptomatic Gastroesophageal Reflux 
Zongli Zheng, Karen L. Margolis, Simin Liu, Lesley F. Tinker, Weimin Ye 
Gastroenterology 
Volume 135, Issue 1, Pages (July 2008)
DOI: /j.gastro
Copyright © 2008 AGA Institute Terms and Conditions

2. Figure 1 Flow diagram of women included in the analyses.
Gastroenterology  , 72-81DOI: ( /j.gastro )
Copyright © 2008 AGA Institute Terms and Conditions