Affiliation: | 1. Allergy and Clinical Immunology Department, National Institute of Pediatrics, Mexico City, Mexico;2. Immunodeficiencies Research Unit, National Institute of Pediatrics, Mexico City, Mexico;3. Dermatology Department, National Institute of Pediatrics, Mexico City, Mexico;4. Pulmonology and Thoracic Surgery Department, National Institute of Pediatrics, Mexico City, Mexico;5. Pathology Department, National Institute of Pediatrics, Mexico City, Mexico |