title: [GAS CHROMATOGRAPHY OF URINARY PORPHYRINS. (PRELIMINARY NOTE)].
mesh_terms: D002845:Chromatography; D002849:Chromatography, Gas; D019411:Clinical Laboratory Techniques; D006801:Humans; D007753:Laboratories; D011164:Porphyrias; D011166:Porphyrins; D014556:Urine
chemical_list: D011166:Porphyrins
keywords: CHROMATOGRAPHY; DIAGNOSIS, LABORATORY; PORPHYRIA; PORPHYRINS; URINE
vernacular_title: LA CROMATOGRAFIA GASSOSA DELLE PROFIRINE URINARIE. (NOTA PRELIMINARE)