TY - JOUR AU - Fleisher, L AWRITING COMMITTEE TI - 2009 ACCF/AHA focused update on peri-operative beta blockade incorporated into the ACC/AHA 2007 guidelines on peri-operative cardiovascular evaluation and care for noncardiac surgery: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines JO - Circulation VL - 120 PY - 2009 N1 - et al. ER -