Fig. 1From: Cardiac characteristics and natural progression in Taiwanese patients with mucopolysaccharidosis IIIRelationships between age and severity of cardiac valve abnormalities in the 26 patients with MPS III. a MS, mitral stenosis; b MR, mitral regurgitation; c AS, aortic stenosis; d AR, aortic regurgitation. Severity of valvular stenosis and regurgitation (MS, MR, AS, AR) were estimated and graded as follows: 0 (none), 1 (mild), 2 (moderate), and 3 (severe)Back to article page