Praveen
You have such a handle on what is happening with your brother, I applaud that. I cannot see anything missing in his protocol.
I just wanted to welcome you to the forum, I am more in the cheerleading section, we have others much more qualified to answer your questions.

I think, when we immigrants come to the States we think because of the easier access to the Doctors etc. that means they must be better, not always the case. The rest of the world, in Europe and the East, are also making great breakthroughs , so have faith in his team they seem to be doing a great job.
Take Care
Marica