1. Pediatric Immunology and Rheumatology Department National Children's Hospital “Dr. Carlos Sáenz Herrera”, Caja Costarricense de Seguro Social San José Costa Rica
2. Postgraduate School University of Costa Rica San José Costa Rica
3. Immunology and Rheumatology Department JP Garrahan Hospital Buenos Aires Argentina
4. Molecular Diagnostic Laboratory National Children's Hospital “Dr. Carlos Sáenz Herrera” San José Costa Rica
5. Center of Molecular and Cellular Biology University of Costa Rica San José Costa Rica