Assessing risk of self-harm in acute paediatric settings: a multicentre exploratory evaluation of the CYP-MH SAPhE instrument oleh David Clark, Tim Carter, Joseph C Manning, Coral Smith, Marie Armstrong, Aimee Aubeeluck, Miranda Witchell, Rachel Barker, Sharon O’love, Tessa Jones, Rachel Dolby, Lynda Walton, Elizabeth Byrne, Rebecca Green, Gemma Walker, Dorothy Bean, Gisela Robinson, Melanie Hayman, Vanessa Unsworth, Caroline Moulds, Laura Looby