title: Reduction in oxygen enhancement ratio with increase in LET: tests of two hypotheses.
mesh_terms: D002696:Chlamydomonas / Q000528:radiation effects; D003903:Deuterium; D004307:Dose-Response Relationship, Radiation; D004583:Electrons; D004735:Energy Transfer; D006371:Helium; D007477:Ions; D010100:Oxygen; D011830:Radiation Effects; D012763:Shigella flexneri / Q000528:radiation effects
chemical_list: D007477:Ions; D006371:Helium; D003903:Deuterium; D010100:Oxygen