title: Invited commentary.
authors.affiliation: Department of Neurology, Harvard Medical School, Children's Hospital Boston, 300 Longwood Ave, Boston, MA 02115, USA. david.bellinger@childrens.harvard.edu
authors.forename: David C
authors.initials: DC
authors.lastname: Bellinger
mesh_terms: D001288:Attention; D003072:Cognition Disorders / Q000175:diagnosis* / Q000209:etiology*; D001026:Coronary Artery Bypass / Q000009:adverse effects*; D005163:Factor Analysis, Statistical; D006801:Humans; D008568:Memory; D009483:Neuropsychological Tests; D011184:Postoperative Period; D011597:Psychomotor Performance; D013997:Time Factors