All papers authored by Per Trygve Normann
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2014
Hallvard Gjerde 
,
Tanara R. Sousa ,
Raquel De Boni ,
Asbjørg S. Christophersen,
Renata P. Limberger,
Ivomar Zancanaro,
Elisabeth L. Øiestad,
Per T. Normann ,
Jørg Mørland,
Flavio Pechansky
,
Tanara R. Sousa ,
Raquel De Boni ,
Asbjørg S. Christophersen,
Renata P. Limberger,
Ivomar Zancanaro,
Elisabeth L. Øiestad,
Per T. Normann ,
Jørg Mørland,
Flavio Pechansky
A comparison of alcohol and drug use by random motor vehicle drivers in Brazil and Norway
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