1. aDepartment of Pediatrics
2. bPediatric Rheumatology Unit, Department of Pediatrics
3. cPediatric Cardiology Unit, Department of Pediatrics
4. dPediatric ICU, Department of Pediatrics
5. eHead Cardiac Surgery Unit, Heart Area Department, University Hospital Central of Asturias, Oviedo, Spain
6. fDepartment of Pediatrics, Instituto de Investigación Sanitaria del Principado de Asturas (ISPA), Principado de Asturias, Spain