Apathy in first episode psychosis patients: a ten year longitudinal follow-up study

Julie Evensen, Jan Ivar Røssberg, Helene Barder, Ulrik Haahr, Wenche ten Velden Hegelstad, Inge Joa, Jan Olav Johannessen, Tor Ketil Larsen, Ingrid Melle, Stein Opjordsmoen, Bjørn Rishovd Rund, Erik Simonsen, Kjetil Sundet, Per Vaglum, Svein Friis, Thomas McGlashan