RT Journal Article SR Electronic T1 Methods in Receptor Research, Part II Methods in Molecular Biology Volume 9 JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 623 OP 623 DO 10.1136/jnnp.40.6.623-a VO 40 IS 6 A1 Simpson, J. A. YR 1977 UL http://jnnp.bmj.com/content/40/6/623.2.abstract AB