title: A COMPARISON IN THE UNITED STATES OF AMERICA OF TWO TUBERCULINS, PPD-S AND RT 23.
mesh_terms: D000413:Alaska; D002140:California; D002626:Chemistry, Pharmaceutical; D011211:Electric Power Supplies; D006801:Humans; D007087:Illinois; D009169:Mycobacterium tuberculosis; D013223:Statistics as Topic; D014373:Tuberculin; D014374:Tuberculin Test
chemical_list: D014373:Tuberculin
keywords: ALASKA; CALIFORNIA; CHEMISTRY, PHARMACEUTICAL; ILLINOIS; STATISTICS; TUBERCULIN; TUBERCULIN TEST