1. Instituto de Estudios de Mastocitosis de Castilla La Mancha (CLMast), Hospital Virgen del Valle, Toledo, Spain
2. Spanish Network on Mastocytosis (REMA), Toledo and Salamanca, Spain
3. Centro de Investigación del Cáncer/IBMCC (USAL/CSIC) and IBSAL, Departamento de Medicina and Servicio General de Citometría, University of Salamanca, Salamanca, Spain
4. Department of Immunology, Erasmus Medical Center, University of Rotterdam, Rotterdam, The Netherlands
5. Department of Pathology, Hospital Virgen de la Salud, Toledo, Spain