title: Classification of subjects as slow or rapid inactivators of isoniazid, based on the ratio of the urinary excretion of acetylisoniazid to isoniazid.
mesh_terms: D001681:Biological Assay; D003124:Colorimetry; D006801:Humans; D007538:Isoniazid / Q000097:blood / Q000378:metabolism / Q000652:urine*; D013997:Time Factors; D014397:Tuberculosis, Pulmonary / Q000097:blood / Q000378:metabolism / Q000652:urine
chemical_list: D007538:Isoniazid