404. That’s an error.
The requested URL /bookmarks/mark?op=add&bkmk=http%3A//www.ajnr.org/content/25/1/84&title=Improved%20Image%20Quality%20of%20Intracranial%20Aneurysms%3A%203.0-T%20versus%201.5-T%20Time-of-Flight%20MR%20Angiography
was not found on this server. That’s all we know.