A machine learning based two-stage clinical decision support system for predicting patients' discontinuation from opioid use disorder treatment: retrospective observational study. - Md Mahmudul Hasan; Gary J. Young; Jiesheng Shi; Prathamesh Mohite; Leonard D. Young; Scott G. Weiner; Md. Noor-E.-Alam (BMC Medical Informatics Decis. Mak., 2021)