< Using sex-aligned hormones to cause a person to become cisgender is sometimes tried and does not appear to be effective How well documented is this, like whe

< Using sex-aligned hormones to cause a person to become cisgender is sometimes tried and does not appear to be effective How well documented is this, like when this has been tried has it been done as part of a formal medical study? What I'm really hoping is someone can say something like "here's the randomized controlled trial comparing treatments".