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2. On Suicide and Attempted Suicide;Dahlgren,1945
3. Reddede selvmordspatienters skaebne, eu efterundersogelse at 500 patienter;Hoye;Ugeskr. Laeg.,1953
4. Der Selbstmord;Ringel,1953
5. The sequelae and short-term prognosis of attempted suicide;Batehelor;J. Neurol. Neurosung. Psychiat.,1954