Foster, Cyrss and Scarlett, Mary and Stewart, Bill (2020) Statistics from the Northern Ireland Substance Misuse Database: 1 April 2019 – 31 March 2020. Experimental Statistics. Belfast: Department of Health.

Foster, Cyrss and Scarlett, Mary and Stewart, Bill (2020) Young persons’ behaviour and attitudes survey 2019: substance use - (smoking, alcohol & drugs). Belfast: Department of Health.