title: Magnesium ammonium phosphate monohydrate--a hitherto undetected constituent of urinary calculi.
mesh_terms: D003553:Cystine / Q000032:analysis; D006801:Humans; D008274:Magnesium / Q000032:analysis*; D010070:Oxalates / Q000032:analysis; D010710:Phosphates / Q000032:analysis*; D000644:Quaternary Ammonium Compounds / Q000032:analysis*; D013055:Spectrophotometry, Infrared; D014527:Uric Acid / Q000032:analysis; D014545:Urinary Calculi / Q000473:pathology*; D014867:Water / Q000032:analysis; D014961:X-Ray Diffraction; D014970:Xanthines / Q000032:analysis
chemical_list: D010070:Oxalates; D010710:Phosphates; D000644:Quaternary Ammonium Compounds; D014970:Xanthines; D014867:Water; D014527:Uric Acid; D003553:Cystine; D008274:Magnesium