Source:http://linkedlifedata.com/resource/umls/id/C0004630
MSH: Toxic substances formed in or elaborated by bacteria; they are usually proteins with high molecular weight and antigenicity; some are used as antibiotics and some to skin test for the presence of or susceptibility to certain diseases.,CSP: toxic substances formed in or elaborated by bacteria; they are usually proteins with high molecular weight and antigenicity; some are used as antibiotics and some to skin test for the presence of or susceptibility to certain diseases.,NCI: A harmful substance made by bacteria that can cause illness. Bacterial toxins can also be made in the laboratory and attached to monoclonal antibodies that bind to cancer cells. These toxins may help kill cancer cells without harming normal cells.