RT Journal Article SR Electronic T1 Interference of Scalp and Skull with External Measurements of Brain Isotope Content: Part 2. Absorption by Skull of Gamma Radiation Originating in Brain JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 184 OP 187 VO 10 IS 4 A1 William H. Oldendorf A1 Youichi Iisaka YR 1969 UL http://jnm.snmjournals.org/content/10/4/184.abstract AB