1. Catatonia. A prospective clinical study;Abrams;Arch. Gen. Psychiatry,1976
2. The course of schizophrenia and schizophreniform psychoses;Achte;Acta Psychiatr. Neurol. Scand. Suppl.,1961
3. Diagnostic and Statistical Manual of Mental Disorders,1994
4. Diagnostic and Statistical Manual of Mental Disorders,2022
5. Neuroleptic malignant syndrome and atypical antipsychotic drugs;Ananth;J. Clin. Psychiatry,2004