What is the fine-grained topic of the following text: Moreover, 50 % of the patients with psychiatric disorders and 10 % of patients with schizophrenia have histories of making threats, agitation, and aggressive behavior (Sramka et al in Bratisl Lek Listty 93(7):365–366, 1992). Only return the topic.
Aggressive behavior in patients with psychiatric disorders and schizophrenia.