Hume, S. P., Cremer, J. E., Pike, V. W., Pascali, C., Lammertsma, A. A., Dolan, R. J., et al. (1991). In vivo distribution of radiolabelled citalopram in brain as a marker of 5-HT uptake sites for PET. Advance in Biosciences, 82, 229-230.