For the article “Perioperative β-Adrenergic Receptor Blockade: Physiologic Foundations and Clinical Controversies,” by London et al. , in the January 2004 issue of

Anesthesiology (2004;100:170–5)
, the authors acknowledge that the first sentence of the article should read:

The recent focus on perioperative β-adrenergic receptor blockade (PBB) to reduce cardiac morbidity or mortality follows nearly 40 yr of research documenting the cardioprotective effects of β-adrenergic receptor (BARs) antagonists.