The effects of positive psychology theory in the rehabilitation nursing of Chinese patients with schizophrenia: a systematic review and meta-analysis of randomized controlled trials - Hong, Yu; Huang, Yanjun; Jiang, Junhong; Liu, Qiuhua; Hu, Jing; Tan, Wenfei; Deng, Jinying; Wang, Xintian (Frontiers in Psychiatry, 2025)