By Helgason Ásgeir R   Lund Karl E   in Scandinavian Journal of Public Health

ISSN:1403-4948|30|2|141-147

Informa Healthcare‎(2002)‎

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By Lund Karl E.   Skrondal Anders   Vertio Harri   Helgason Ásgeir R.   in Scandinavian Journal of Public Health

ISSN:1403-4948|26|2|115-120

Informa Healthcare‎(1998)‎

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