1
Published 2014
National Clinical Guideline Centre

2
Published 2015
National Collaborating Centre for Women's and Children's Health

3
Published 2015
National Institute for Health and Care Excellence (UK)

4
Published 2015
National Institute for Health and Care Excellence (UK)

5
Published 2015
National Institute for Health and Care Excellence

6
Published 2015
National Institute for Health and Care Excellence

10
Published 2016
National Institute for Health and Care Excellence

11
Published 2016
National Institute for Health and Care Excellence

12
Published 2013
Royal College of Obstetricians and Gynaecologists

13
Published 2013
Royal College of Obstetricians & Gynaecologists

15
Published 2014
National Institute for Health and Care Excellence

16
Published 2014
National Institute for Health and Care Excellence

17
Published 2013
National Institute for Health and Care Excellence

18
Published 2015
National Institute for Health and Care Excellence

19
Published 2014
National Clinical Guideline Centre

20
Published 2013
National Institute for Health and Care Excellence