Norway, Holland, Denmark, Germany, Italy, Spain, Canada, USA, Russia, France, Bangladesh, South Afica, Belgium, Luxembourg.... that's about it. (Not in that order; The Netherlands first)
But your remark "That's what schools and doctors claim here in the USA!!!" is 258. (You see, I learned something.)
Looking for USA-info regarding CI promising 100% hearing.... looking-Google.... looking-Metacrawler... looking-Yahoo...... looking-Dogpile....
No nothing.