TY - RPRT TI - Activation patterns in the left atrium during counterclockwise and clockwise atrial flutter. AU - G Ndrepepa AU - B Zrenner AU - S Weyerbrock AU - M A Schneider AU - C Schmitt PY - 2001 DO - 10.1046/j.1540-8167.2001.00893.x UR - https://pubmed.ncbi.nlm.nih.gov/11513439/ ID - 11513439 ER -