%0 Journal Article %T Frequent nightmares in Chinese patients undergoing methadone maintenance therapy: prevalence, correlates, and their association with functional impairment %A Bao-Liang Zhong %A Jin Lu %A Wu-Xiang Xie %A Yan-Min Xu %J Archive of "Neuropsychiatric Disease and Treatment". %D 2019 %R 10.2147/NDT.S202813 %X Nightmares are associated with many negative health outcomes; however, little is known about the characteristics of nightmares in heroin-dependent patients (HDPs). This study examined the prevalence and correlates of frequent nightmares (FNs) and their association with functional impairment in Chinese patients undergoing methadone maintenance therapy (MMT) %K nightmare %K methadone maintenance therapy %K functional impairment %K sleep disorder %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6646172/