Thygesen Lau Caspar, Hvidt Niels Christian, Juel Knud, Hoff Andreas, Ross Lone, Johansen Christoffer
Institute of Cancer Epidemiology, Danish Cancer Society, Copenhagen, Denmark.
Int J Epidemiol. 2012 Oct;41(5):1248-55. doi: 10.1093/ije/dyr089. Epub 2011 Jun 15.