Is peptic ulcer a common cause of upper gastrointestinal symptoms?
2001 ◽
Vol 160
(8)
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pp. 497-500
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2002 ◽
Vol 16
(7)
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pp. 439-450
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2020 ◽
2010 ◽
Vol 11
(2)
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pp. 83-87
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2015 ◽
Vol 42
(7)
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pp. 845-854
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