APA-referens (7:e uppl.)

Campbell, C. I., Saxon, A. J., Boudreau, D. M., Wartko, P. D., Bobb, J. F., Lee, A. K., . . . Bradley, K. A. (2021). PRimary Care Opioid Use Disorders treatment (PROUD) trial protocol. Addiction Science & Clinical Practice, 16(1), . https://doi.org/10.1186/s13722-021-00218-w

Chicago-referens (17:e uppl.)

Campbell, Cynthia I., et al. "PRimary Care Opioid Use Disorders Treatment (PROUD) Trial Protocol." Addiction Science & Clinical Practice 16, no. 1 (2021). https://doi.org/10.1186/s13722-021-00218-w.

MLA-referens (9:e uppl.)

Campbell, Cynthia I., et al. "PRimary Care Opioid Use Disorders Treatment (PROUD) Trial Protocol." Addiction Science & Clinical Practice, vol. 16, no. 1, 2021, https://doi.org/10.1186/s13722-021-00218-w.