Implementation and integration of Regional Health Care Data Networks: the case of the Hellenic NHS CTI Technical Report Νο. TR 2002/12/01 - Λάμψας, Π.; Βιδάλης, Ιωάννης; Παπανικολάου, Χρήστος; Βαγγελάτος, Αριστείδης (CTI, 2002)