Wazaify, Mayyada M and Hughes, Carmel M and McElnay, James C (2006) The implementation of a harm minimisation model for the identification and treatment of over-the-counter drug misuse and abuse in community pharmacies in Northern Ireland. Patient Education and Counseling, 64, (1-3), pp. 136-141. https://doi.org/10.1016/j.pec.2005.12.008.