Bjørn Heine Strand, Else-Karin Grøholt, Ólöf Anna Steingrímsdóttir, Tony Blakely, Sidsel Graff-Iversen, Øyvind Næss et al
Strand B H, Grøholt E, SteingrÃmsdóttir A, Blakely T, Graff-Iversen S, Næss /span> et al.
Educational inequalities in mortality over four decades in Norway: prospective study of middle aged men and women followed for cause specific mortality, 1960-2000
BMJ 2010; 340 :c654
doi:10.1136/bmj.c654