Just wanted to chime in with so info here. There are some entries for Dr. Mattox and Dr. Olson at Emory University. I wanted to say I consulted with them both on my 3cm AN and they were very professional and informative and I would trust either of them to perfrom tis operation. Also, a co-worker of mine had Dr. Danko Cerenko perform his surgery 3 years ago and had nothing but GREAT things to say about him. I've consulted with Dr. Cerenko as well at Piedmont Hospital and was very impressed. His neurosurgeon that he teams up with is Dr. James C. Robinson fom the Atlanta Brain and Spine Center. Haven't met him yet, so I cannot comment an opinion. But, I'm sure he's top notch as well.
Hope any of this information can help someone.