Valgerdur Lisa Sigurdardottir, Reykjavik, Iceland
University of Iceland, Reykjavík, Iceland
Heilsugæslan Grafarvogi, Reykjavík, Grafarvogur, Iceland
Heilsugæslan Miðbæ, Reykjavík, Iceland
Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria
Aston University School of Life and Health Sciences, Birmingham, United Kingdom
Eye Clinic of the University Hospital Basel, Basel, Basel-Stadt, Switzerland
The Department of Thoracic Medicine at Landspítali, Reykjavík, Iceland
Reykjalundur Rehabilitation Center, Mosfellsbaer, Iceland
Unit for Nutrition Research, Reykjavik, Iceland