title: Congenital heart disease before the age of two.
mesh_terms: D006328:Cardiac Catheterization; D005260:Female; D005500:Follow-Up Studies; D006330:Heart Defects, Congenital / Q000175:diagnosis* / Q000401:mortality / Q000601:surgery; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male