Spontaneous change from pulmonic stenosis to pulmonic regurgitation.
D002675:Child, Preschool; D005260:Female; D006321:Heart / Q000503:physiopathology; D006801:Humans; D007223:Infant; D011665:Pulmonary Valve Insufficiency / Q000209:etiology* / Q000503:physiopathology; D011666:Pulmonary Valve Stenosis / Q000150:complications* / Q000503:physiopathology