Sheehan, R., Hassiotis, A., Walters, K., Osborn, D., Strydom, A., & Horsfall, L. (2015). Mental illness, challenging behaviour, and psychotropic drug prescribing in people with intellectual disability: UK population based cohort study. BMJ.

Sheehan, Rory, Angela Hassiotis, Kate Walters, David Osborn, André Strydom, i Laura Horsfall. "Mental Illness, Challenging Behaviour, and Psychotropic Drug Prescribing in People With Intellectual Disability: UK Population Based Cohort Study." BMJ 2015.

Sheehan, Rory, et al. "Mental Illness, Challenging Behaviour, and Psychotropic Drug Prescribing in People With Intellectual Disability: UK Population Based Cohort Study." BMJ 2015.