APA   Click to copy
Witkiewitz, K., Votaw, V. R., Vowles, K. E., & Kranzler, H. R. (2018). Opioid misuse as a predictor of alcohol treatment outcomes in the combine study: mediation by medication adherence. Alcoholism: Clinical and Experimental Research, 42, 1249–1259.

Chicago/Turabian   Click to copy
Witkiewitz, Katie, Victoria R Votaw, Kevin E Vowles, and Henry R Kranzler. “Opioid Misuse as a Predictor of Alcohol Treatment Outcomes in the Combine Study: Mediation by Medication Adherence.” Alcoholism: clinical and experimental research 42 (2018): 1249–1259.

MLA   Click to copy
Witkiewitz, Katie, et al. “Opioid Misuse as a Predictor of Alcohol Treatment Outcomes in the Combine Study: Mediation by Medication Adherence.” Alcoholism: Clinical and Experimental Research, vol. 42, 2018, pp. 1249–59.

@article{witkiewitz2018a,
  title = {Opioid misuse as a predictor of alcohol treatment outcomes in the combine study: mediation by medication adherence},
  year = {2018},
  journal = {Alcoholism: clinical and experimental research},
  pages = {1249--1259},
  volume = {42},
  author = {Witkiewitz, Katie and Votaw, Victoria R and Vowles, Kevin E and Kranzler, Henry R}
}