Zoppo, Franco Prevalence of patent foramen ovale in atrial fibrillation patients with history of cerebral ischemia: a stand-alone additional risk? [electronic resource] - International journal of cardiology Mar 2014 - e290-1 p. digital Publication Type: Letter; Multicenter Study ISSN: 1874-1754 Standard No.: 10.1016/j.ijcard.2013.12.196 doi Subjects--Topical Terms: AdultAgedAtrial Fibrillation--diagnosisBrain Ischemia--diagnosisCohort StudiesFemaleForamen Ovale, Patent--diagnosisHumansMaleMiddle AgedPrevalenceRegistriesRisk Factors