title: [Frequent ventricular extrasystoles during physical exertion].
mesh_terms: D000328:Adult; D005117:Cardiac Complexes, Premature / Q000188:drug therapy / Q000209:etiology*; D005080:Exercise Test; D006801:Humans; D008297:Male; D005082:Physical Exertion; D011217:Practolol / Q000627:therapeutic use; D013177:Sports
chemical_list: D011217:Practolol
vernacular_title: Een geval van frequente ventriculaire extrasystolie tijdens lichamelijke inspanning.