PT - JOURNAL ARTICLE AU - SINAN DAGDELEN AU - NEVNIHAL EREN AU - CEM ALHAN TI - Isolated halo sign in the middle of the left atrium AID - 10.1136/heart.86.4.375 DP - 2001 Oct 01 TA - Heart PG - 375--375 VI - 86 IP - 4 4099 - http://heart.bmj.com/content/86/4/375.short 4100 - http://heart.bmj.com/content/86/4/375.full SO - Heart2001 Oct 01; 86