Transgression Film Studios is a film production company that produces and develops documentary films that delves into contemporary, and often controversial, medical topics, including sex addiction, autogynephilic addiction (e.g., transsexualism) and genital mutilation.  Transgression Film Studios at the domain, transgression.com, has been in operation since October, 1998.
For over seventeen years Transgression Film Studios has created thought provoking documentary films and animations that cut through otherwise superficial treatment of the subject matter.
[Regarding the male-to-female ratio of transsexualism being the same as all other behavioral addictions] generation of interesting and novel testable hypothesis is what drives great science!
 Autogynephilic Addiction: What is it?