Source:http://linkedlifedata.com/resource/umls/id/C0020960
MSH: Serum that contains antibodies. It is obtained from an animal that has been immunized either by ANTIGEN injection or infection with microorganisms containing the antigen.,CSP: serum containing antibodies to one or more antigens; may be obtained from an immunized animal.,NCI: A blood serum or immunoglobulin fraction that contains antibodies against specific antigens obtained from previously immunized animals.