[1] Imperial Coll London, Dept Surg & Canc, Sect Vasc Surg, London, England
[2] Med Univ Silesia, Katowice, Poland
[3] Univ Bonn, Dept Dermatol, Bonn, Germany
[4] Univ Ferrara, Dept Translat Med, Ferrara, Italy
[5] St Vincents Hosp, Dept Dermatol, Sydney, NSW, Australia
[6] Imperial Coll London, Charing Cross Hosp, Dept Surg & Canc, Sect Vasc Surg, Room 4N12,4th Floor, London W68RF, England