Southern and Eastern Norway Regional Health Authority  Southern and Eastern Norway Regional Health Authority () is the largest of the four Regional health authorities in Norway. It covers the counties of Akershus, Aust-Agder, Buskerud, Hedmark, Oppland, Oslo, Telemark, Vest-Agder, Vestfold and Østfold. The authority owns fifteen health trusts that operate the hospitals as well as Southern and Eastern Norway Pharmaceutical Trust that operates nineteen pharmacies. The authority is subordinate to the Norwegian Ministry of Health and Care Services and was created on 1 June 2007 when Eastern Norway Regional Health Authority and Southern Norway Regional Health Authority merged.