title: [Determination of morphine and morphine derivates by electron spin resonance].
mesh_terms: D004578:Electron Spin Resonance Spectroscopy; D006801:Humans; D009020:Morphine / Q000652:urine*; D009022:Morphine Derivatives / Q000652:urine*
chemical_list: D009022:Morphine Derivatives; D009020:Morphine
vernacular_title: Bestemmelse af morfin og morfinderivater ved elektron-spin-resonans