TY JOUR TI Protection of Spermatogenesis with β-Carotene in Radiation Exposure. Message 1: Single Acute External γ-Irradiation. Short-Term Application of Carothynoid KW external acute γ-irradiation KW spermatogenesis KW β-carotene KW short-term prescription KW mice KW rats JO Medical Radiology and radiation safety AU Belyaev, I.. AU Samoylov, A.S. PY 2018 IS 63 PB Federal Medical Biological Agency of Russia