RT Journal Article SR Electronic T1 A young pregnant woman with shortness of breath JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 788 OP 792 VO 75 IS 11 A1 Dwayne A. Perkins A1 Craig Nielsen A1 Michael Faulx YR 2008 UL http://www.ccjm.org/content/75/11/788.abstract AB