+In the case of male-to-female transsexualism, we notice a pattern where androphilic and non-androphilic trans women seem to be different from each other—not just in their sexuality, but also in their age of dysphoria onset, interests, and personality. Many authors have noticed this clustering of traits, [while disagreeing about the underlying causality](/2021/Feb/you-are-right-and-i-was-wrong-reply-to-tailcalled-on-causality/).
+
+[Blanchard]
+
+[Veale, Clarke, and Lomax](/papers/veale-lomax-clarke-identity_defense_model.pdf) attribute the differences to whether defense mechanisms are used to suppress a gender-variant identity.
+
+[Vitale] http://www.avitale.com/developmentalreview.htm
+
+[Serano 2020]