TY  - SER
AU  - Johnson, Wendy.                 
TI  - Disruptive behavior and school grades: genetic and environmental relations in 11-year-olds 
PY  - 2005///
KW  - Disruptive behavior
KW  - Genetic and environmental influences
KW  - Inattention
KW  - School grades
KW  - Twin study
N1  - Psychology
ER  -