[1] Kings Coll London, Cicely Saunders Inst Palliat Care Policy & Rehabi, London, England
[2] Brighton Gen Hosp, Sussex Community NHS Fdn Trust, Brighton, E Sussex, England
[3] Univ East Anglia, Sch Hlth Sci, Norwich, Norfolk, England
[4] Kings Coll London, Clin Trials Unit, London, England
[5] Kings Coll London, Cicely Saunders Inst Publ Involvement Grp, London, England
[6] Guys & St Thomas NHS Fdn Trust, Royal Brompton & Harefield Hosp, Harefield Resp Res Grp, London, England
[7] Brunel Univ London, Dept Hlth Sci, London, England
[8] Kings Coll Hosp NHS Fdn Trust, Pulm Rehabil, London, England
[9] Kings Coll Hosp NHS Fdn Trust, Dept Clin Gerontol, London, England
[10] Guys & St Thomas NHS Fdn Trust, Harefield Pulm Rehabil Unit, London, England
[11] Hillingdon Hosp NHS Fdn Trust, Dept Geriatr Med, Uxbridge, Middx, England
[12] Guys & St Thomas NHS Fdn Trust, Dept Ageing & Hlth, London, England
[13] Kings Coll London, Dept Twin Res & Genet Epidemiol, London, England
[14] Royal Brompton & Harefield Hosp, Harefield Resp Res Grp, London, England
[15] Imperial Coll London, Natl Heart & Lung Inst, London, England
[16] Kings Coll London, Fac Life Sci & Med, London, England