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Behavioural genetics of early childhood: fears, restlessness, motion sickness and enuresis
Childhood sex-role behaviors: similarities and differences in twins
Depression, criminality and psychopathology associated with alcoholism: evidence from a twin study
Health related psychosocial correlates of neuroticism: a study of adult male twins in Finland
Psychiatric hospitalization in twins
Self- and teacher-rated school adjustment in MZ and DZ twins