2
Published 2005
Published by Gaskell and the British Psychological Society

3
Published 2003
NHS, National Institute for Clinical Excellence

4
Published 2008
Royal College of Physicians

8
Published 2004
RCOG Press

9
Published 2014
National Collaborating Centre for Cancer

10
Published 2006
National Collaborating Centre for Acute Care (UK)

11
Published 2008
National Collaborating Centre for Cancer

12
Published 2004
National Institute for Clinical Excellence (Great Britain)

13
Published 2009
National Institute for Health and Care Excellence (NICE)

15
Published 2003
NHS, National Institute for Clinical Excellence

16
Published 2004
National Institute for Clinical Excellence (Great Britain)

18
Published 2009
National Institute for Health and Care Excellence (NICE)