Northumberland, Tyne and Wear NHS Foundation Trust with Dr Lesley Maunder and Lorna Cameron (“Self Harm – A self-help guide”). The Northumberland, Tyne and Wear NHS Foundation guide was reused by different county NHS trusts, with minor adjustments made to include local signposting for the county or small additions to the text: https://research.reading.ac.uk/wp-content/uploads/sites/3/2017/04/Northumberland-Self-Harm-Self-Help.pdf