RT Journal Article SR Electronic T1 Volume of procedures and outcome of treatment JF BMJ JO BMJ FD British Medical Journal Publishing Group SP 787 OP 788 DO 10.1136/bmj.325.7368.787 VO 325 IS 7368 A1 Soljak, Michael YR 2002 UL http://www.bmj.com/content/325/7368/787.abstract AB