[1] Univ Edinburgh, Queens Med Res Inst, CIR Ctr Inflammat Res, Edinburgh, Midlothian, Scotland
[2] Univ Teknol MARA, Fac Hlth Sci, Shah Alam, Selangor, Malaysia
[3] Univ Edinburgh, Usher Inst, Edinburgh, Midlothian, Scotland
[4] Univ Malaya, Lib, Kuala Lumpur, Malaysia
[5] Univ Edinburgh, NIHR Global Hlth Res Unit Resp Hlth RESPIRE, Edinburgh, Midlothian, Scotland