Wiedmann Markus, Brunborg Cathrine, Lindemann Kristina, Johannesen Tom Børge, Vatten Lars, Helseth Eirik, Zwart John Anker
Department of Neurosurgery, Oslo University Hospital, Ulleval, 0450, Oslo, Norway.
Australian School of Advanced Medicine, Macquarie University, 2 Technology Place, Sydney, NSW, 2109, Australia.
Eur J Epidemiol. 2016 Jan;31(1):95-8. doi: 10.1007/s10654-015-0033-6. Epub 2015 Apr 24.