[1
]Allergology Department Hospital Universitario Ramón y Cajal IRYCS Madrid Spain
[2
]Dermatology Department Hospital Universitario Ramón y Cajal IRYCS Madrid Spain
[3
]Immunology Department Hospital Universitario Ramóny Cajal IRYCS Madrid Spain
[4
]Pathological Anatomy Hospital Universitario Ramón y Cajal IRYCS Madrid Spain
[5
]Spanish Thematic Network and Co‐operative Research Centres ARADyAL Spain