title: Patent ductus arteriosus (P.D.A.) (an analysis of 37 surgically proved cases).
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004374:Ductus Arteriosus, Patent / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male