title: Preface.
authors.forename: Peter Z
authors.initials: PZ
authors.lastname: Qin
authors.forename: Kurt
authors.initials: K
authors.lastname: Warncke
mesh_terms: D004578:Electron Spin Resonance Spectroscopy / Q000379:methods*; D004583:Electrons; D005609:Free Radicals / Q000737:chemistry / Q000302:isolation & purification*; D006801:Humans; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D009369:Neoplasms / Q000378:metabolism* / Q000473:pathology
chemical_list: D005609:Free Radicals