three commercially available monoclonal anti-beta-subunit of hcg ( beta-hcg ) antibodies were evaluated and the most specific and sensitive one was chosen to develop a quantitative beta-hcg radioimmunoassay . beta-hcg radioimmunoassay kits from nuclear medical systems , inc. , and clinical assays served as polyclonal antibody assays .
C0106132
beta-hcg
C1141639
hcg