Ballard, C., Hanney, M. L., Theodoulou, M., Douglas, S., McShane, R., Kossakowski, K . . . Yu, L. (2009). The dementia antipsychotic withdrawal trial (DART-AD): Long-term follow-up of a randomised placebo-controlled trial. The Lancet Neurology, 8(2), 151-157. doi: 0.1016/S1474-4422(08)70295-3