title: Electron spin resonance of x-irradiated single crystals of L-threonine at 77 degrees K.
mesh_terms: D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals; D005615:Freezing; D011830:Radiation Effects; D013912:Threonine / Q000528:radiation effects*
chemical_list: D005609:Free Radicals; D013912:Threonine