The Aberdeen mark II single-photon- emission tomographic scanner: specification and some clinical applications Paper entitled 'The Aberdeen mark II single-photon- emission tomographic scanner: specification and some clinical applications' by N.T.S.Evans, W.I.Keyes, D.Smith, J.Coleman, D.Cumpstey, P.E.Undrill, K.V.Ettinger, K.Ross, M.Y.Norton, M.P.Bolton, F.W.Smith and J.R.Mallard, Department of Bio-Medical Physics and Bio-Engineering, University of Aberdeen and published in Physics in Medicine and Biology, volume 31, number 1, 1986. This copy is an offprint. 1986