TY - JOUR TI - May positive U waves in V1-V3 leads predict left main coronary artery occlusion? AU - Tatlı, E. AU - Yıldırım, T. AU - Aktoz, M. AU - Büyüklü, M. JO - The Anatolian Journal of Cardiology PY - 2008 VL - 8 SP - 315 EP - 315 DO - ER -