Enzyme-linked immunoassay. Conjugation of rabbit anti-(human immunoglobulin G) antibody with beta-D-galactosidase from Escherichia coli and its use for human immunoglobulin G assay.

Enzyme-linked immunoassay. Conjugation of rabbit anti-(human immunoglobulin G) antibody with beta-D-galactosidase from Escherichia coli and its use for human immunoglobulin G assay.