TY - JOUR T1 - Demonstration of supravalvar aortic stenosis by different cardiac imaging modalities in Williams syndrome JF - Heart JO - Heart SP - 438 LP - 438 DO - 10.1136/heart.88.4.438 VL - 88 IS - 4 AU - H-J Youn AU - W-S Chung AU - S-J Hong Y1 - 2002/10/01 UR - http://heart.bmj.com/content/88/4/438.1.abstract N2 - A 31 year old man was admitted for evaluation of dyspnoea and heart murmur. He had had exertional dyspnoea for several years. He had a typical posture with short stature and elfin face typical of Williams syndrome, characterised by protruded forehead, … ER -