Contrasting monosymptomatic patients with hallucinations and delusions in first-episode psychosis patients: a five-year longitudinal follow-up study

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