PT - JOURNAL ARTICLE AU - P Nihoyannopoulos AU - Mj Monaghan TI - Echocardiography 1997 AID - 10.1136/hrt.78.Suppl_1.1 DP - 1997 Aug 01 TA - Heart PG - 1--1 VI - 78 IP - Suppl 1 4099 - http://heart.bmj.com/content/78/Suppl_1/1.short 4100 - http://heart.bmj.com/content/78/Suppl_1/1.full SO - Heart1997 Aug 01; 78