title: Serum propylthiouracil: determination by a direct colorimetric procedure.
mesh_terms: D000284:Administration, Oral; D003124:Colorimetry; D006801:Humans; D006980:Hyperthyroidism / Q000097:blood / Q000188:drug therapy; D007202:Indicators and Reagents; D008722:Methods; D011441:Propylthiouracil / Q000008:administration & dosage / Q000097:blood* / Q000627:therapeutic use; D011809:Quinones; D013053:Spectrophotometry
chemical_list: D007202:Indicators and Reagents; D011809:Quinones; D011441:Propylthiouracil