[New problems in gastroenterology].
Tashev
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D002031:Bulgaria; D005762:Gastroenterology / Q000639:trends*; D005767:Gastrointestinal Diseases / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D006801:Humans; D012106:Research / Q000639:trends
Vŭrkhu niakoi novi problemi v gastroenterologiiata.