Indications for referral of infants to the cardiologist.
D003490:Cyanosis / Q000209:etiology*; D004562:Electrocardiography; D006321:Heart / Q000000981:diagnostic imaging; D006331:Heart Diseases / Q000150:complications*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases; D011859:Radiography