[1] Hospital Parc Taulí,Rheumatology Unit, Department of Pediatrics
[2] Hospital Sant Joan de Déu,Rheumatology Unit, Department of Pediatrics
[3] Esplugues de Llobregat,Cardiology Department
[4] Hospital Sant Joan de Déu,Pediatrics Department
[5] Hospital Vall d'Hebron,Pediatrics Department
[6] Hospital Arnau de VIlanova,Pediatrics Department
[7] Hospital Josep Trueta,Pediatrics Department
[8] Consorci Sanu¡itari de Terrassa,Pediatrics Department
[9] Hospital del Mar,Pediatrics Department
[10] Hospital Sant Joan de Reus,Pediatrics Department
[11] Hospital General de Granollers,Pediatrics Department
[12] Hospital Joan XIII,undefined