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Immunoassay of human chorionic gonadotropin, its free subunits, and metabolites
Multiple hCG-related molecules are present in pregnancy serum and urine samples. These include non-nicked hCG (the hormone), nicked hCG, hyper- and hypoglycosylated hCG, hCG missing the C-terminal extension, free alpha-subunit, large free alpha-subunit, free beta-subunit, nicked free beta-subunit, and beta-core fragment. Over 100 immunoassays are sold for quantifying hCG-related molecules in serum or urine. Each measures nonnicked hCG and one of seven combinations of the other hCG-relatedpmid:9439438 fatcat:uptm5wgednaexnd74ua7wyubky