ERRATUM

The authors regret the following errors that appeared in “Anterior Spinal Artery as a Collateral Channel in Cases of Bilateral Vertebral Arterial Steno-Occlusive Diseases” (AJNR Am J Neuroradiol 2007;28:222–25):

1. The last author's name is Y.C. Koh, not Y.C. Ko

2. The following acknowledgment was omitted: This paper was supported by Konkuk University in 2006.

3. The legend of Figure 4 (5th line) should read “the anterior inferior cerebellar artery.”

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