1. Mc Afee, J. G., Taxdal, D. R.: Comparison of radioisotope scanning with cerebral angiography and air studies in brain tumor localization. Radiology 77, 207 (1961).
2. Afifi, A. K., Morrison, R. R., Sahs, A. L., Evans, T. C.: A comparison of chlormerodrin Hg - 203 scintiencephaloscanning with neuroradiology and electroencephalography for the localization of intracranial lesions. Neurology 15, 56?63 (1965).
3. Bowallius, M., Larsson, A., Sköldbom, H., Wickbom, I.: Brain scan (with gammacamera techniques after intravenous administration of Na 99m Tc 04) and conventional neuroroentgenological methods in cases of intracranial tumours. IX. Symp. Neuroradiol., Göteborg 1970, paper 168.
4. Eck, J. H. M. van, Penning, D.: Isotope encephalography and cerebral angiography in the diagnosis of brain lesions. Symp. Angiographie/Szintigraphie, Europ. Assoziation f. Radiol., Mainz 1970, paper 3.
5. Friedmann, G., Wilcke, O.: Gegenüberstellung der serienangiographischen und szintigraphischen Ergebnisse bei 242 Hirntumoren. Acta radiol. Diagnosis 5, 774?778 (1966).