What research is that?
How come Cass didn’t find any research that met the quality standards?
or are you talking about MRI scans?
Here is a criticique of the veracity of of of those:
https://x.com/neurosgs/status/2074532284229668990?s=46
“People often cite this paper as evidence that transgender women have “female brains.” That’s not what the data show.
The MRI classifier correctly identified biological sex in 100% of control women and 93.3% of men. Overall, accuracy dropped to 61.5% in transgender women.
When the sample is split by hormone status, treatment-naive transgender women were classified as male 87.5% of the time (not significantly different from men). By contrast, transgender women receiving cross-sex hormone treatment were classified as male only 50% of the time (see table 4 of the paper).
The pattern suggests that the increased misclassification is associated with cross-sex hormone treatment, rather than transgender status itself.”
rhe study being referred to is:
https://www.nature.com/articles/s41386-020-0666-3
There are flaws pointed out about other too.
And what the fuck do studies of artificial
hormone supplementation prove other than some male people supplement estrogen at female levels. There can be no proof that supplementation of hormones change sex at all.