title: Are patients with a patent foramen ovale at increased risk of stroke? A billion dollar question.
authors.affiliation: University of Arizona, Tucson, USA.
authors.forename: James E
authors.initials: JE
authors.lastname: Dalen
mesh_terms: D006344:Heart Septal Defects, Atrial / Q000150:complications* / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D012307:Risk Factors; D020521:Stroke / Q000150:complications*