title: A practical diagnostic approach to cyanotic congenital heart disease.
mesh_terms: D002648:Child; D002675:Child, Preschool; D003490:Cyanosis / Q000209:etiology; D006330:Heart Defects, Congenital / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn