title: Serious overestimation of endogenous fecal porphyrin concentrations by solvent-extraction techniques, as demonstrated by HPLC.
authors.forename: N A
authors.initials: NA
authors.lastname: McCarroll
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D005189:False Positive Reactions; D005243:Feces / Q000032:analysis*; D006801:Humans; D011166:Porphyrins / Q000032:analysis*; D012997:Solvents
chemical_list: D011166:Porphyrins; D012997:Solvents