Stein, M. D., & Anderson, B. (2003). Injection frequency mediates health service use among persons with a history of drug injection. Drug and alcohol dependence, 70(2), 159-168. https://doi.org/10.1016/S0376-8716(02)00344-7
Chicago Style (17th ed.) CitationStein, Michael D., and Bradley Anderson. "Injection Frequency Mediates Health Service Use Among Persons with a History of Drug Injection." Drug and Alcohol Dependence 70, no. 2 (2003): 159-168. https://doi.org/10.1016/S0376-8716(02)00344-7.
MLA (9th ed.) CitationStein, Michael D., and Bradley Anderson. "Injection Frequency Mediates Health Service Use Among Persons with a History of Drug Injection." Drug and Alcohol Dependence, vol. 70, no. 2, 2003, pp. 159-168, https://doi.org/10.1016/S0376-8716(02)00344-7.
Warning: These citations may not always be 100% accurate.