Plasma Homocyst(e)ine or Homocysteine?

Abstract
The article “Association between Plasma Homocysteine Concentrations and Extracranial Carotid-Artery Stenosis”1 and the accompanying editorial “Can Lowering Homocysteine Levels Reduce Cardiovascular Risk?”2 (Feb. 2 issue) draw attention to the increased risk of vascular disease in the presence of increased plasma concentrations of what both the article and the editorial term “homocysteine.”