title: Percutaneous PFO closure, further data but many unanswered questions.
authors.forename: John D R
authors.initials: JD
authors.lastname: Thomson
mesh_terms: D015906:Angioplasty, Balloon, Coronary / Q000379:methods*; D006344:Heart Septal Defects, Atrial / Q000628:therapy*; D006801:Humans