RT Journal Article SR Electronic T1 Dual-Isotope SPECT of Skull-Base Invasion of Head and Neck Tumors JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1740 OP 1746 VO 36 IS 10 A1 Mitsutaka Fukumoto A1 Shoji Yoshida A1 Daisuke Yoshida A1 Seiji Kishinmoto YR 1995 UL http://jnm.snmjournals.org/content/36/10/1740.abstract AB