== Changing "Controversy" to "Effectiveness" == 

 I am changing the name of the "Controversy" section to "Effectivness," since that's what the section actually does.  The section seems, correctly, not to give undue weight to laypersons who oppose sex reassignment therapy.  (For the most part, I think we need to be moving away from lay sources and toward medical and psychological sources.)  As well, I am going to begin the organizational process a little more, by splitting off the David Reimer case into its own section, "Sex reassignment of infants with ambiguous genitalia," while moving the rest into "Sex reassignment of transsexual persons," since that discussion dominates the section anyway.