Cita APA

Mariani, J. J., Cheng, W. Y., Bisaga, A., Sullivan, M., Carpenter, K., Nunes, E. V., & Levin, F. R. (2011). Comparison of Clinical Trial Recruitment Populations: Treatment-Seeking Characteristics of Opioid-, Cocaine-, and Cannabis-Using Participants.

Chicago Style Citation

Mariani, John J., Wendy Y. Cheng, Adam Bisaga, Maria Sullivan, Kenneth Carpenter, Edward V. Nunes, i Frances R. Levin. Comparison of Clinical Trial Recruitment Populations: Treatment-Seeking Characteristics of Opioid-, Cocaine-, and Cannabis-Using Participants. 2011.

Cita MLA

Mariani, John J., et al. Comparison of Clinical Trial Recruitment Populations: Treatment-Seeking Characteristics of Opioid-, Cocaine-, and Cannabis-Using Participants. 2011.