title: [Electrocardiographic changes following endoscopic study of the stomach using a gastrofibroscope].
mesh_terms: D000328:Adult; D004562:Electrocardiography; D005260:Female; D005773:Gastroscopy / Q000009:adverse effects*; D006331:Heart Diseases / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged
vernacular_title: Izmeniia élektrokardiogrammy pri éndoskopicheskom issledovanii zheludka s pomoshch'iu gastrofibroskopa.