1. Dermatology Department, Hospital Universitario de Toledo, Avenida del Río Guadiana s/nº , cp: 45007 Toledo , Spain
2. Allergy Department, Hospital Universitario de Toledo, Avenida del Río Guadiana s/nº , cp: 45007 Toledo , Spain
3. Instituto de Mastocitosis de Castilla La Mancha, Hospital Virgen del Valle, Carretera de Cobisa s/n cp: 45071 , Toledo , Spain
4. Dermatology Department, Hospital Universitario de Guadalajara, p.c.: 19002 , Guadalajara , Spain
5. Faculty of Medicine and Health Sciences, Medicine and Medical Specialties Department, Universidad de Alcalá, Alcalá de Henares , p.c.: 28871, Madrid , Spain