A.-L. Manninen, J.-M. Isokangas, A. Karttunen, T. Siniluoto, and M.T. Nieminen
A Comparison of Radiation Exposure between Diagnostic CTA and DSA Examinations of Cerebral and Cervicocerebral Vessels
AJNR Am J Neuroradiol originally published online on June 14, 2012, 10.3174/ajnr.A3123
http://ajnrdigest.org/a-comparison-of-radiation-exposure-between-diagnostic-cta-and-dsa-examinations-of-cerebral-and-cervicocerebral-vessels/ tai pdf.