Forget about Nobel, I wish I could - a shocking decision, a shocking practice with abysmal ethics. They don't deserve to grace this earth, its that simple. You don't realise that you have just saved your life!
Onto our American friends. My 'over the pond' geography is not great but in Toronto there's ****** (known for aggressive hairlines), in Vancouver you have *************.
You'll have to work out a few specifics first, FUE vs strip, number of grafts etc. The best way is to do research yourself. By the way how old are you?
Other Docs I've heard are amongst the best in the US are ******* (Minneapolis I think - Strip), **** (Cincinnati - FUE & Strip), **** (Atlanta - FUE & Strip), ****** (New York - FUE & Strip). There's more obviously but these are the ones I hear about most.
I've edited this post cos certain Docs can't be mentioned here but a few wee searches around the Internet and you should find the top guys pretty easily.