The Northern Swedish Cohort (NoSCo) 2007
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In 1981 a longitudinal study began that includes all pupils who attended or should have attended the last year of compulsory school in the municipality of Luleå. The population...
1981年，一项纵向研究（longitudinal study）正式启动，该研究纳入了所有曾就读或应就读于吕勒奥（Luleå）市义务教育最后一年级的学生，其研究人群……
