Response to clozapine and its predictors in treatment-resistant schizophrenia spectrum disorders: A retrospective chart review - Sanahan, Rajkumar; Sreeraj, Vanteemar S.; Suhas, Satish; Kumar, Vijay; Thirthalli, Jagadisha; Venkatasubramanian, Ganesan (Schizophrenia Research, 2025)