RT Journal Article SR Electronic T1 A Study of Free Amino Acids In the Human Cerebrospinal Fluid JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 767 OP 767 DO 10.1212/WNL.5.11.767 VO 5 IS 11 A1 John Logothetis YR 1955 UL http://n.neurology.org/content/5/11/767.abstract AB