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Twins
Dizygotic Twins
Infants
Monozygotic Twins
Peer Group
Crime Victims
Longitudinal Studies
Social Environment
Risk Factors
Individuality
Sociometric Techniques
Models, Psychological
Aggression
Social Adjustment
Parenting
Friends
Quebec
Diseases in Twins
Genetic Predisposition to Disease
Hostility
Co-Publications
27
22
19
17
5
4
3
2
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