Debbie A Lawlor, Maarike Harro, Niels Wedderkopp, Lars Bo Andersen, Luis B Sardinha, Chris J Riddoch et al
Lawlor D A, Harro M, Wedderkopp N, Andersen L B, Sardinha L B, Riddoch C J et al.
Association of socioeconomic position with insulin resistance among children from Denmark, Estonia, and Portugal: cross sectional study
BMJ 2005; 331 :183
doi:10.1136/bmj.331.7510.183