AO3 - gender dysphoria genetic - limitation
P: its central claims have been challenged
E: Hulshoff Pol - studied changes in transgender individuals brains using MRI scans taken during hormone treatment - scans showed that size of the BST changed signif. over that period
E: And researchers like Kruijver and Zhou - the BST was examined post-mortem and after transgender individuals received hormone treatment
L: differences in the BST may have been an effect of hormone therapy rather than gender dysphoria