Anyone know anything about the "one-step Amsterdam procedure"?

I was just looking into a gender clinic reasonably nearby (They're up in Michigan some 40+ miles north of me), and their site, here, claims they do SRS using the "one-step Amsterdam procedure"...

Anyone ever heard of this SRS procedure? I tried googling and either my google-fu has failed, or, there is like, no information about this, or, well, it just plain doesn't exist.