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| Austria | 
| Vienna, Vienna Department of Pediatrics; Vienna General Hospital | » Pediatric unit | 
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| Belgium | 
| Brussels, Brussels Cliniques universitaires Saint-Luc - UCL | » Pediatric unit» Adult unit | 
| Ghent, Ghent UZ Ghent | » Pediatric unit» Adult unit | 
| Leuven, Leuven University Hospitals | » Pediatric unit» Adult unit | 
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| Czech Republic | 
| Prague, Prague University Hospital Motol | » Pediatric unit | 
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| Denmark | 
| Aarhus, Aarhus University Hospital | » Pediatric unit | 
| Copenhagen, Copenhagen Rigshospitalet University Hospital | » Pediatric unit | 
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| Finland | 
| Helsinki, Helsinki Children´s Hospital, Helsinki University Hospital | » Pediatric unit | 
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| France | 
| Bordeaux, Bordeaux University Hospital | » Pediatric unit | 
| Montpellier, Montpellier University Hospital | » Pediatric unit | 
| Paris, Paris Hospital Robert Debre | » Pediatric unit | 
| Paris, Paris Necker-Enfants Malades University Hospital | » Pediatric unit | 
| Toulouse, Toulouse University Hospital | » Pediatric unit | 
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| Germany | 
| Berlin, Berlin Charité - Universitätsmedizin Berlin | » Pediatric unit» Adult unit | 
| Cologne, Cologne University Hospital | » Pediatric unit» Adult unit | 
| Erlangen, Erlangen University Hospital | » Adult unit | 
| Essen, Essen University Children`s Hospital | » Pediatric unit | 
| Hannover, Hannover Medical School | » Pediatric unit» Adult unit | 
| Heidelberg, Heidelberg University Hospital | » Pediatric unit | 
| Leipzig, Leipzig University Hospital | » Adult unit | 
| Münster, Münster University Hospital | » Pediatric unit | 
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| Hungary | 
| Budapest, Budapest Semmelweis University | » Pediatric unit | 
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| Ireland | 
| Dublin, Dublin Beaumont Hospital | » Adult unit | 
| Dublin, Dublin Children`s Health Ireland (CHI) at Temple Street | » Pediatric unit | 
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| Italy | 
| Bari, Bari AOU Consorziale policlinico di Bari-Ospedale Pediatrico Giovanni XXIII | » Pediatric unit | 
| Bologna, Bologna AOU Policlinico S. Orsola Bologna | » Adult unit | 
| Brescia, Brescia ASST Spedali Civili Brescia | » Adult unit | 
| Florence, Florence Meyer Children’s Hospital IRCCS | » Pediatric unit | 
| Genoa, Genoa Istituto Giannina Gaslini | » Pediatric unit | 
| Milan, Milan IRCCS Ca' Granda Ospedale Maggiore Policlinico | » Pediatric unit | 
| Naples, Naples A.O. Santobono-Pausilipon | » Pediatric unit | 
| Naples, Naples UOC Nephrology and Dialysis -  Università della Campania | » Pediatric unit» Adult unit | 
| Padua, Padua Azienda Ospedaliera di Padova | » Pediatric unit | 
| Rome, Rome Bambino Gesù Children's Hospital | » Pediatric unit | 
| Turin, Turin AOU Città della Salute e della Scienza di Torino - Molinette Hospital | » Adult unit | 
| Turin, Turin AOU CSS di Torino - Regina Margherita Hospital | » Pediatric unit | 
| Turin, Turin University of Torino-Ospedale HUB Torino Nord | » Adult unit | 
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| Lithuania | 
| Vilnius, Vilnius University Hospital Santaros Klinikos | » Pediatric unit | 
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| Netherlands | 
| Amsterdam, Amsterdam Academic University Medical Center (AUMC) | » Pediatric unit | 
| Groningen, Groningen University Medical Center | » Pediatric unit» Adult unit | 
| Leiden, Leiden University Medical Center | » Adult unit | 
| Nijmegen, Nijmegen Radboud UMC | » Pediatric unit» Adult unit | 
| Rotterdam, Rotterdam Erasmus MC: University Medical Center Rotterdam | » Pediatric unit | 
| Utrecht, Utrecht University Medical Centre | » Pediatric unit | 
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| Poland | 
| Cracow, University Children's Hospital of Cracow | » Pediatric unit | 
| Gdansk, Gdansk University Clinical Centre | » Pediatric unit | 
| Lodz, Lodz Instytut | » Pediatric unit | 
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| Portugal | 
| Porto, Porto Centro Hospitalar Universitário do Porto | » Pediatric unit | 
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| Slovenia | 
| Ljubljana, Ljubljana University Medical Centre | » Pediatric unit | 
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| Spain | 
| Barcelona, Barcelona Hospital de la Santa Creu I Sant Pau and Fundacio Puigvert/IUNA | » Adult unit | 
| Barcelona, Barcelona Hospital Universitari Vall d'Hebron | » Pediatric unit | 
| Madrid, Madrid Hospital Universitario 12 de Octubre | » Pediatric unit» Adult unit | 
| Sevilla, Sevilla Complejo Hospitalario Regional Virgen del Rocio | » Pediatric unit | 
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| Sweden | 
| Stockholm, Stockholm Karolinska University Hospital | » Pediatric unit» Adult unit |