Candidate gene association studies of the alpha4 (CHRNA4) and beta2 (CHRNB2) neuronal nicotinic acetylcholine receptor subunit genes in Alzheimer's disease

L. J. Cook, L. W. Horrobin, A. E. Taylor, C. Brayne, J. G. Evans, J. Xuereb, N. J. Cairns, A. Pritchard, H.a. Lemmon, D. Mann, David Malcolm St Clair, D. Turic, P. Hollingworth, P. J. Moore, L. Jehu, N. Archer, S. Walter, C. Foy, A. Edmondson, J. Powell