four baboons were primed with diazotized beta human chorionic gonadotrophin and boosted with diazotized c-terminal beta human chorionic gonadotrophin peptide , and the changes in antibody amount and affinity determined using a double isotope modified farr assay , using labelled human chorionic gonadotrophin as the antigen .
C0106132
beta human chorionic gonadotrophin
C0018062
human chorionic gonadotrophin