Trial Steering Committee: Deborah Ashby (investigator), David Chadwick (trialist), Jill Motley (consumer representative), Vanessa Poustie (observer), Jayne Russell (observer), Rosalind Smyth (lead investigator), Colin Wallis (chair), Ruth Watling (investigator), Sue Wolfe (collaborators� representative).

CALICO Trial Collaborative Group (recruited children to the trial): Carolyn Patchell and Lorraine Bell, Birmingham Children�s Hospital; Alison Woodhead and Dalvinder Hellawell, Bradford Royal Infirmary; Jacqueline Lowdon, University Hospital of Wales, Cardiff; Alison Williams and Lisa Waddell, Derby Children�s Hospital; Sue Wolfe, St James University Hospital, Leeds; Clare Leonard, Robyn Huggins, Pearl Dixon, and Alan Smyth, Nottingham City Hospital; Sarah Trace, Lisa Cooke, and Simon Langton-Hewer, Bristol Children�s Hospital; Helen McCabe and Fiona Rychel, Newcastle Royal Victoria Infirmary; Ann Bentley, Hull Royal Infirmary; Naomi Beckles Willson, Monica Adhikari, and Christopher Taylor, Sheffield Children�s Hospital; Georgina Timson, Macclesfield District General Hospital; Rachel Lindsey and Lucy McAteer, Wirral Hospital; Cathy Webb, Wrexham Maelor Hospital; Anne Wright, Royal Albert Edward Infirmary, Wigan; Sue Lane, Warrington District General Hospital; Liz Foden-Schroff, Bangor Hospital; Sue Bell, North Staffordshire Hospital; Ann Williams, Singleton Hospital, Swansea; Lynda Towers, Countess of Chester Hospital, Chester; Carolyn Short, Nobels Hospital, Isle of Man; Lorna Stanley, Whiston Hospital.