A
Matti Uusitupa
University of Eastern Finland
Leo Niskanen
K. Pyörälä
Antti Aro
National Institute for Health and Welfare
Erkki Voutilainen
Public health laboratory
M. Uusitupa
Timo K. Korhonen
University of Helsinki
Markku Laakso
University of Washington
Helena Sarlund
Social Insurance Institution
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