Rumination and drug craving scores in Chinese male patients with methamphetamine and heroin use disorders: a cross-sectional study. - Mao, Yinxue; Li, Deyang; Wang, Dongmei; Tian, Yang; Chen, Jiajing; Jia, Lianglun; Wang, Xiaotao; Zhang‍‍, Xiang-Yang‍ (Substance Abuse Treatment, Prevention & Policy, 2025)