TY - RPRT TI - Resynchronization therapy upgrades: turning coach into first class. AU - Boaz D Rosen AU - Ronald D Berger PY - 2004 DO - 10.1046/j.1540-8167.2004.04575.x UR - https://pubmed.ncbi.nlm.nih.gov/15574180/ ID - 15574180 ER -