00614nam a2200133Ia 4500 180412s9999||||xx |||||||||||||| ||und|| 113204663 Ahmadu Bello University Library - Zaria GREAT BRITAIN. Department of Health Code of practice for the protection of persons against ionizing radiations arising from medical and dental use Great Britain. Department of Health. \\ 3rd ed. London. H.M.S.O. 1972 x, 138p.: ill. Atomic medicine;Medical aspects of high-energy radiations.;Natural science;Radiology and Atomic Energy;Radiation hazards 298 298