title: Occult patent ductus arteriosus encountered during coronary artery bypass procedures.
authors.forename: D A
authors.initials: DA
authors.lastname: Killen
authors.forename: J M
authors.initials: JM
authors.lastname: Piehler
authors.forename: A M
authors.initials: AM
authors.lastname: Borkon
authors.forename: W A
authors.initials: WA
authors.lastname: Reed
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000601:surgery; D004374:Ductus Arteriosus, Patent / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D006801:Humans; D008026:Ligation; D008297:Male; D008875:Middle Aged