Butterfield, D., Hensley, K., Hall, N., Umhauer, S., & Carney, J. (1993). Interaction of tacrine and velnacrine with neocortical synaptosomal membranes: relevance to Alzheimer’s disease. Neurochemical Research, 18(9), 989-94. https://doi.org/10.1007/BF00966758