[1] British Soc Antimicrobial Chemotherapy, Birmingham, W Midlands, England
[2] Temple St Childrens Univ Hosp, Dublin, Ireland
[3] Evelina London Childrens Hosp, London, England
[4] Royal Hosp Children, Glasgow, Lanark, Scotland
[5] Univ Hosp Southampton NHS Fdn Trust, Southampton Childrens Hosp, Southampton, Hants, England
[6] Bradford Teaching Hosp NHS Trust, Bradford, W Yorkshire, England
[7] North Manchester Gen Hosp, Manchester, Lancs, England
[8] Oxford Univ Hosp NHS Fdn Trust, Childrens Hosp, Oxford, England
[9] Univ Leicester NHS Trust, Leicester, Leics, England