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. Author manuscript; available in PMC: 2009 Nov 1.
Published in final edited form as: Gastroenterology. 2008 Aug 12;135(5):1469–1492. doi: 10.1053/j.gastro.2008.05.047

Figure 1.

Figure 1

Effect of widespread use of PPIs on diagnosis and referral of ZES patients in two centers (Italian-La Sapienza University [Rome, Italy] and NIH [Bethesda, Maryland]). The left panel shows the annual number of referrals of new cases before and after the widespread use of PPIs. The right panel shows the result for diagnosis of ZES at the NIH center. (Modified from66)