[1
]
Section of Population Health, University of Aberdeen, Aberdeen AB25 2ZG, UK; Respiratory
Medicine, Aberdeen Royal Infirmary, Aberdeen AB25 2ZN, UK. Electronic address: g.devereux@abdn.ac.uk.
[2
]
Respiratory Medicine, Aberdeen Royal Infirmary, Aberdeen AB25 2ZN, UK.
[3
]
Section of Population Health, University of Aberdeen, Aberdeen AB25 2ZG, UK.
[4
]
School of Nursing and Midwifery, University of Dundee, Dundee DD1 9SY, UK.
[5
]
TMRC Laboratory, University of Dundee, Dundee DD1 5EH, UK.
[6
]
Department of Paediatrics, Royal Aberdeen Children's Hospital, Aberdeen AB25 2ZG,
UK.
[7
]
Department of Respiratory Medicine, Ninewells Hospital, Dundee DD1 9SY, UK.
[8
]
TMRC Laboratory, University of Dundee, Dundee DD1 5EH, UK; Discovery Translational
Medicine, Pfizer Research, Collegeville, PA 19426, USA.
[9
]
Discovery Translational Medicine, Pfizer Research, Collegeville, PA 19426, USA.