[1] Univ Calif Los Angeles, Sch Med, Cedars Sinai Res Inst, Los Angeles, CA 90048 USA
[2] Univ Santiago de Compostela, Santiago De Compostela, Spain
[3] Univ Milan, Milan, Italy
[4] Hop Bicetre, Le Kremlin Bicetre, France
[5] Univ Illinois, Chicago, IL USA
[6] St Bartholomews Hosp, London, England
[7] Garvan Inst Med Res, Sydney, NSW, Australia
[8] NYU Med Ctr, New York, NY 10016 USA
[9] Univ Rotterdam Hosp, Rotterdam, Netherlands
[10] Univ Virginia, Charlottesville, VA USA
[11] Sch Med, Naples, Italy
[12] Schlosspk Klin, Berlin, Germany
[13] Radcliffe Infirm, Oxford OX2 6HE, England
[14] Univ Brescia, Brescia, Italy