Source:http://linkedlifedata.com/resource/umls/id/C0041289
MSH: A protein extracted from boiled culture of tubercle bacilli (MYCOBACTERIUM TUBERCULOSIS). It is used in the tuberculin skin test (TUBERCULIN TEST) for the diagnosis of tuberculosis infection in asymptomatic persons.,NCI: Extracts of Mycobacterium tuberculosis that are used in skin testing to identify individuals who have a latent or active tuberculosis infection.