The majority of medical documents is not centralised. Whenever institutions as hospitals or private laboratories make them available, documents stay hosted on their own servers. The Réseau Santé Wallon only lists them and organises their access. 

Nevertheless, the Réseau Santé Wallon can host data for the field actors who do not have a server, like the general practitioners for example. The organisation of hosting and sharing first-line data is the Inter-Med project, run by the FAG, Forum of Generalists Associations.