1. From the Institute of Cancer Epidemiology (Z.J.A., K.K.A., M.S., A.T., O.R.-N.), Danish Cancer Society, Copenhagen, Denmark; Informatics and Mathematical Modelling (L.C.K.), Technical University of Denmark, Lyngby, Denmark; The Stroke Unit (T.S.O.), Frederiksberg Hospital, Frederiksberg, Denmark; the Department of Environmental Science (M.H., S.S.J., M.K.), Aarhus University, Roskilde, Denmark; the Section of Environmental Health (S.L.), University of Copenhagen, Copenhagen, Denmark; the School of...