alpha4beta2-nicotinic receptor binding with 5-IA in Alzheimer's disease: methods of scan analysis. by Terrière, E, Sharman, M, Donaghey, C, Herrmann, L, Lonie, J, Strachan, M, Dougall, N, Best, J, Ebmeier, K, Pimlott, S, Patterson, J, Wyper, D