Research priorities for children’s cancer: a James Lind Alliance Priority Setting Partnership in the UK by Nigel J Hall, David Weller, Bob Phillips, Faith Gibson, Susie Aldiss, Rachel Dommett, Jessica Elizabeth Morgan, Alex Brownsdon, Helen Morris, Julia Chisholm, Sonia Malik, Jonathan Gower, Andy Stewart, Dan Saunders, Ashley Ball-Gamble, Helen Hartley, Rachel Hollis, Scott Crowther, Jenni Hatton, Louise Henry, Loveday Langton, Kirsty Maddock, Keeley McEvoy, Simon Parke, Sue Picton, Rosa Reed-Berendt, Wendy Tarplee-Morris, Amy Walsh, Anna Watkins