RT Journal Article SR Electronic T1 Aging Effect on Neutral Amino Acid Transport at the Blood-Brain Barrier Measured with L-[2-18F]-Fluorophenylalanine and PET JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1232 OP 1237 VO 36 IS 7 A1 Ito, Hiroshi A1 Hatazawa, Jun A1 Murakami, Matsutaro A1 Miura, Shuichi A1 Iida, Hidehiro A1 Bloomfield, Peter M. A1 Kanno, Iwao A1 Fukuda, Hiroshi A1 Uemura, Kazuo YR 1995 UL http://jnm.snmjournals.org/content/36/7/1232.abstract AB