RT Journal Article SR Electronic T1 Enigmas of a mother’s heart JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 272 OP 272 DO 10.3949/ccjm.76a.05001 VO 76 IS 5 A1 Mandell, Brian F. YR 2009 UL http://www.ccjm.org/content/76/5/272.abstract AB