title: Pterins in human urine.
mesh_terms: D000284:Administration, Oral; D000818:Animals; D001001:Anura; D001681:Biological Assay; D002852:Chromatography, Ion Exchange; D002854:Chromatography, Paper; D004032:Diet; D056890:Eukaryota / Q000378:metabolism; D005492:Folic Acid / Q000008:administration & dosage / Q000494:pharmacology; D006801:Humans; D011621:Pteridines / Q000302:isolation & purification; D011622:Pterins / Q000032:analysis / Q000652:urine*; D011687:Purines / Q000302:isolation & purification; D013053:Spectrophotometry; D013237:Stereoisomerism; D014466:Ultraviolet Rays
chemical_list: D011621:Pteridines; D011622:Pterins; D011687:Purines; D005492:Folic Acid