title: Urinary excretion of delta-aminolaevulinic acid and porphobilinogen in young natives of 13,000 feet, brought to sea level.
mesh_terms: D000293:Adolescent; D000531:Altitude; D001654:Bile Pigments; D006418:Heme / Q000096:biosynthesis*; D006801:Humans; D007982:Levulinic Acids / Q000652:urine*; D008297:Male; D011166:Porphyrins / Q000096:biosynthesis*; D011758:Pyrroles / Q000652:urine*; D013053:Spectrophotometry
chemical_list: D001654:Bile Pigments; D007982:Levulinic Acids; D011166:Porphyrins; D011758:Pyrroles; D006418:Heme