The politics and science of twin studies
Are identical twins really identical?
When does schizophrenia originate?
Are individuals who develop schizophrenia different as children?
Does schizophrenia change the structure of the brain?
Does schizophrenia change the underlying personality?
When both twins get schizophrenia, are their diseases similar?
How different are twins with bipolar disorder from twins with schizophrenia?
What do twin studies tell us about the causes of schizophrenia?
Appendices: Final diagnostic groups
Neuropsychological examination
Personality inventory for children.