[1
]
1 Department of Clinical Biochemistry, Herlev and Gentofte Hospital.
[2
]
3 The Copenhagen General Population Study, Herlev and Gentofte Hospital, and.
[3
]
2 Faculty of Health and Medical Sciences and.
[4
]
5 Medical Unit, Respiratory Section, Hvidovre Hospital, Copenhagen University Hospital,
Copenhagen, Denmark.
[5
]
4 Section of Social Medicine, Department of Public Health, University of Copenhagen,
Copenhagen, Denmark; and.
[6
]
6 Centre for Respiratory Medicine and Allergy, The University of Manchester and University
Hospital South Manchester NHS Foundation Trust, Manchester, United Kingdom.