1. World Health Organization. WHO recommendations: intrapartum care for a positive childbirth experience. Geneva: World Health Organization; 2018 [Internet]. Available from: http://apps.who.int/iris/bitstream/handle/10665/260178/9789241550215-eng.pdf?sequence=1 [cited 2018, Oct 8].
2. Wagner M. Pursuing the Birth Machine: The Search for Appropriate Birth Technology. London: ACE Graphics; 1994.
3. World Health Organization. The prevention and elimination of disrespect and abuse during facility-based childbirth. Geneva: World Health Organization; 2014 [Internet]. Available from: http://apps.who.int/iris/bitstream/handle/10665/134588/WHO_RHR_14.23_eng.pdf?sequence=1 [cited 2018, Oct 8].
4. Department of Health. Changing childbirth. Part 1: report of the Expert Maternity Group. London: HMSO; 1993.
5. National Health Service. Better Births. Improving outcomes of maternity services in England a five year forward view for Maternity Care National Maternity Review, London: National Health Service; 2016 [Internet]. Available from: https://www.england.nhs.uk/wp-content/uploads/2016/02/national-maternity-review-report.pdf [cited 2018, Oct 8].