Hacettepe University Hospital (Ankara, Turkish)

Hadassah University Hospital (Jerusalem, Israel)

John Radcliffe Hospital (Oxford, UK)

Purpan University Hospital (Toulouse, France)

San Raffaele Scientific Institute (Milan, Italy)

BISS, University of Belgrade (Belgrade, Serbia)

University Lyon-1, Lyon University Hospital (Lyon, France)

University of Southern Denmark (Odense, Denmark)

Hellenic Pasteur Institute (Athens, Greece)

PORTUGAL - Hospital S. Joao, Porto.