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Journal
Acta Paediatr
Volume
87
Issue
3
Pages
291-6
Publication year
1998
Suggested citation
Strømme P, Valvatne K. Mental retardation in Norway: prevalence and sub-classification in a cohort of 30037 children born between 1980 and 1985. Acta Paediatr. 1998; 87(3): 291-6.