Hi Masum,It would seem unlikely (not impossible!) that any of our posters have had any contact with the physicians you've listed. They all seem very well qualified, credentialed, and most importantly, treat movement disorders.
Again, it looks as though you've found three top notch people...good luck!
All the best,
Joe
PS I see that Dr. Erle Chuen-Hian Lim studied under Dr. Mitchell Brin who is considered to be an authority on the administration of botulinum toxin for treating movement disorders. That just for your information...again, from all appearances, they're three very qualified doctors...let us know which one you choose and how the appointment goes?