Higgins, K., McLaughlin, A., Perra, O., McCartan, C., McCann, M., Percy, A., & Jordan, J. (2018). The Belfast Youth Development Study (BYDS): A prospective cohort study of the initiation, persistence and desistance of substance use from adolescence to adulthood in Northern Ireland. PLoS One.

Higgins, Kathryn, Aisling McLaughlin, Oliver Perra, Claire McCartan, Mark McCann, Andrew Percy, and Julie-Ann Jordan. "The Belfast Youth Development Study (BYDS): A Prospective Cohort Study of the Initiation, Persistence and Desistance of Substance Use From Adolescence to Adulthood in Northern Ireland." PLoS One 2018.

Higgins, Kathryn, et al. "The Belfast Youth Development Study (BYDS): A Prospective Cohort Study of the Initiation, Persistence and Desistance of Substance Use From Adolescence to Adulthood in Northern Ireland." PLoS One 2018.