404. That’s an error.
The requested URL /bookmarks/mark?op=add&bkmk=http%3A//stroke.ahajournals.org/content/early/2004/04/29/01.STR.0000128697.52150.75&title=Recurrent%20Stroke%20in%20Patients%20With%20Symptomatic%20Carotid%20Artery%20Occlusion%20Is%20Associated%20With%20High-Volume%20Flow%20to%20the%20Brain%20and%20Increased%20Collateral%20Circulation
was not found on this server. That’s all we know.