Depending on where you are at, I have been referred to Dr. Stephan Annest, Vascular Institute of the Rockies - Denver, Colorado. He is in the original clinic that Dr. Roos founded. I understand that there is a Dr. Hal Hershall in Dallas I believe. I have many more names in differant locationa, and alot of information if you care to respond. Hope you are doing better, good luck - you must be very carefull in who you select to take care of you. This is a very highly specialized area, and not many vascular doctors or physical therapists for that matter are not experts in this, and can in fact hurt you more than you already are if they do not treat you properly.