[Spin immunoassay].
D000906:Antibodies / Q000032:analysis; D004578:Electron Spin Resonance Spectroscopy; D006241:Haptens / Q000032:analysis; D006801:Humans; D007118:Immunoassay / Q000379:methods*; D009020:Morphine / Q000032:analysis
D000906:Antibodies; D006241:Haptens; D009020:Morphine