I would like to rectify some information given in this topic.
1. Zamboni's e-mail address is now firstname.lastname@example.org
2. In the paper he published on the J Vascular Surgery in late Nov 2009 there are clear instructions regarding the machine his group used and how to conduct the Doppler study.
3. Paolo Zamboni told me recently that he cannot treat new patients at present, although he has obtained permission to treat patients with re-occurrence of the venous obstructions. There is no point therefore to contact Zamboni while the restrictions he is suffering are still in place.