title: Congenital heart disease in the over 40 age group in Sri Lanka.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006330:Heart Defects, Congenital / Q000453:epidemiology*; D006343:Heart Septal Defects / Q000453:epidemiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011666:Pulmonary Valve Stenosis / Q000453:epidemiology; D013188:Sri Lanka; D013771:Tetralogy of Fallot / Q000453:epidemiology