Author(s): Erskine J, McGovern T, Hicks C, Lugsden E, Small A
Notes: This article stems from research in the NHS funded by the SDO. This is one of a series of articles being planned by the multi-disciplinary team from Newcastle and Durham Universities. The lead author for this article is likely to be Jonathan Erskine. The respective contribution from members of the team is under discussion and the complete author list has not been agreed.