There are all kinds of differences between people belonging to different ethnic groups, but we are taught to keep quiet about this obvious and undeniable scientific fact.
https://onlinelibrary.wiley.com/doi/10.1111/cen.14682
Ethnic differences among patients in high-security psychiatric hospitals in England
Curtis, David (2018) Polygenic risk score for schizophrenia is more strongly associated with ancestry than with schizophrenia, Psychiatric Genetics: October 2018 - Volume 28 - Issue 5 - p 85-89.
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