RT Journal Article SR Electronic T1 Patent foramen ovale and stroke: To close or not to close? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP S118 OP S120 VO 74 IS 2 suppl 1 A1 Penn, Marc S. A1 Young, James B. A1 Hahn, Joseph F. A1 Furlan, Anthony J. YR 2007 UL http://www.ccjm.org/content/74/2_suppl_1/S118.abstract AB