Demonstration of a reduction in muscarinic receptor binding in early Alzheimer’s disease using iodine-123 dexetimide single-photon emission tomography - Claus, JJ; Dubois, EA; Booij, J; Habraken, J; de Munck, JC; van Herk, M; Verbeeten Jr, B; van Royen, EA (Eur J Nucl Med, 1997)