[1] UCL Great Ormond St Inst Child Hlth, Resp Crit Care & Anaesthesia Sect, London, England
[2] Univ Nottingham, Evidence Based Child Hlth Grp, Nottingham, England
[3] Parent Children CF, Nottingham, England
[4] Univ Leeds, Leeds, W Yorkshire, England
[5] Person CF, Leeds, W Yorkshire, England
[6] Person CF, Plymouth, Devon, England
[7] Univ Nottingham, Ctr Evidence Based Dermatol, Nottingham, England
[8] Leeds Teaching Hosp NHS Trust, Leeds, W Yorkshire, England
[9] Kings Coll Hosp NHS Fdn Trust, Paediat CF Serv, London, England
[10] York Teaching Hosp NHS Fdn Trust, Dept Physiotherapy, York Hull Adult CF Unit, York, N Yorkshire, England
[11] Univ Hosp Birmingham NHS Fdn Trust, West Midlands Adult CF Ctr, Birmingham, W Midlands, England