The relative biological efficiency of 20-Mev electrons and 250-Kevp x-rays as measured in the 12-day-old chick embryo.
D004583:Electrons; D004622:Embryo, Mammalian / Q000528:radiation effects*; D004625:Embryo, Nonmammalian / Q000528:radiation effects*; D005190:Family; D011830:Radiation Effects; D014965:X-Rays
EMBRYO/radiation effects; RADIATION EFFECTS/experimental