title: Young Woman With Syncope.
authors.affiliation: Department of Emergency Medicine, Boston Medical Center, Boston, MA.
authors.forename: Ryan P
authors.initials: RP
authors.lastname: Sullivan
authors.affiliation: Department of Emergency Medicine, Boston Medical Center, Boston, MA.
authors.forename: William E
authors.initials: WE
authors.lastname: Baker
authors.affiliation: Department of Emergency Medicine, Boston Medical Center, Boston, MA.
authors.forename: Mark W
authors.initials: MW
authors.lastname: Byrne
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008946:Mitral Valve Stenosis / Q000175:diagnosis* / Q000601:surgery; D013902:Radiography, Thoracic; D012214:Rheumatic Heart Disease / Q000175:diagnosis* / Q000601:surgery; D013575:Syncope / Q000175:diagnosis*