[1] Fdn IRCCS Policlin San Matte, Hematol, Pavia, Italy
[2] James Cook Univ Hosp, South Tees Trust NHS, Hematol Dept, Middlesbrough, Cleveland, England
[3] Fdn IRCCS Policlin San Matteo, Dermatol, Pavia, Italy
[4] Policlin GB Rossi, Hematol, Verona, Italy
[5] Univ Bologna, Dept Expt Diagnost & Specialty Med, Dermatol, Bologna, Italy
[6] Univ Salerno, Immunol & Allergol, Salerno, Italy
[7] Univ Padua, Pediat Dermatol, DIMED, Padua, Italy
[8] Hosp Brunico, Dermatol & Venerol, Brunico, Italy
[9] Osped Niguarda Ca Granda, Allergol & Immunol, Milan, Italy
[10] Univ Florence, Careggi Univ Hosp, Ctr Res & Innovat Myeloproliferat Neoplasms CRIMM, Florence, Italy
[11] Univ Bologna, Hematol, Bologna, Italy
[12] St Anna Hosp, Allergy Unit, Como, Italy
[13] Fdn IRCCS Ca Grande Osped Maggiore Policlin Milan, Milan, Italy
[14] Univ Cagliari, Pediat, Cagliari, Italy
[15] Hosp San Raffaele, Hematol, Milan, Italy
[16] Univ Florence, Dermatol, Florence, Italy
[17] Univ Siena, Hematol, Siena, Italy
[18] Univ Parma, Dermatol, Parma, Italy
[19] ASST Monza, Osped San Gerardo, Div Ematol, Monza, Italy
[20] Osped Cesena, Hematol, Cesena, Italy
[21] Univ Pavia, Fdn IRCCS Policlin San Matteo, Gastroenterol, Pavia, Italy
[22] IRCCS, Policlin San Matteo, Internal Med, Pavia, Italy
[23] Fdn IRCCS Policlin San Matteo, Pediat Dept, Pavia, Italy
[24] Univ Pavia, Fdn IRCCS Policlin San Matteo, Pathol Dept, Pavia, Italy
[25] Osped Civile, Allergol, Verona, Italy
[26] Azienda Policlin Umberto I Roma, Sapienza Univ Roma, Ematol, Rome, Italy
[27] Med Univ Vienna, Div Hematol & Hemostaseol, Dept Internal Med 1, Vienna, Austria
[28] Med Univ Vienna, Ludwig Boltzmann Inst Hematol & Oncol, Vienna, Austria