[1] IRCCS Galeazzi Sant Ambrogio Hosp, Intervent Cardiol Unit, Milan, Italy
[2] Hammersmith Hosp, Imperial Coll Healthcare NHS Trust, London, England
[3] Univ Hosp Cologne, Cologne, Germany
[4] Ist Sci San Raffaele, Milan, Italy
[5] Univ Trieste, Trieste, Italy
[6] AGH Univ Sci & Technol, Krakow, Poland
[7] Kerckhoff Heart Ctr, Bad Soden, Germany
[8] Jagiellonian Univ Med Coll, Krakow, Poland