RT Journal Article SR Electronic T1 Ligand Assay. Analysis of International Developments on Isotopic and Nonisotopic Immunoassay JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 86 OP 87 VO 23 IS 1 A1 Nickoloff, Eileen YR 1982 UL http://jnm.snmjournals.org/content/23/1/86.2.abstract AB