2. Where registries or databases from a number of Member States organise themselves into a single network of registries or databases at Union level, the associated registries or databases may designate a coordinator to ensure the provision of data from the registries’ or databases’ network for secondary use. The health data access body of the Member State in which the coordinator of the network is established shall be competent to decide on the health data access applications to be used to provide access to electronic health data for the network of registries or databases.