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Literature DB >> 5794240

Validity of a questionnaire for diagnosis of peptic ulcer in an ethnically heterogeneous population.

Abstract

Entities: Disease

Source DB: PubMed Journal: J Chronic Dis ISSN： 0021-9681

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Authors: M Clarke; T Halil; N Salmon
Journal: Br J Prev Soc Med Date: 1976-06

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