404. That’s an error.
The requested URL /bookmarks/mark?op=add&bkmk=http%3A//www.haematologica.org/content/103/2/336&title=Prognostic%20significance%20of%20tumor%20burden%20assessed%20by%20whole-body%20magnetic%20resonance%20imaging%20in%20multiple%20myeloma%20patients%20treated%20with%20allogeneic%20stem%20cell%20transplantation
was not found on this server. That’s all we know.