title: Plasma rifampicin assay by an improved solvent extraction technique.
mesh_terms: D006801:Humans; D007565:Jaundice / Q000097:blood; D008722:Methods; D012293:Rifampin / Q000097:blood*; D012997:Solvents; D013056:Spectrophotometry, Ultraviolet
chemical_list: D012997:Solvents; D012293:Rifampin