1
Published 2002
National Institute for Health and Clinical Excellence (NICE)

2
Published 2011
National Institute for Health and Clinical Excellence

3
Published 2008
National Institute for Health and Clinical Excellence

4
Published 2011
National Institute for Health and Clinical Excellence

5
Published 2012
The British Psychological Society and The Royal College of Psychiatrists

8
Published 2008
RCOG Press

10
Published 2010
British Psychological Society

11
Published 2010
British Psychological Society

12
Published 2011
British Psychological Society

14
Published 2009
RCOG Press

15
by Packham, Karen
Published 2010
Royal College of Obstetricians and Gynaecologists

16
Published 2008
RCOG Press

17
Published 2010
National Clinical Guideline Centre

18
Published 2010
National Institute for Health and Clinical Excellence

19
Published 2009
National Institute for Health and Clinical Excellence

20
Published 2012
Published by the RCOG at the Royal College of Obstetricians and Gynaecologists