404. That’s an error.
The requested URL /bookmarks/mark?op=add&bkmk=http%3A//thorax.bmj.com/content/49/12/1185&title=Inhaled%20corticosteroid%20therapy%20in%20children%3A%20an%20assessment%20of%20the%20potential%20for%20side%20effects.
was not found on this server. That’s all we know.