00639nam a2200145Ia 4500008004100000020001400041040004400055100004000099245015300139250001600292260002800308300001900336600012500355999001300480180412s9999||||xx |||||||||||||| ||und||  a113204663  aAhmadu Bello University Library - Zaria  aGREAT BRITAIN. Department of Health 0aCode of practice for the protection of persons against ionizing radiations arising from medical and dental usecGreat Britain. Department of Health.  a\\a3rd ed.  aLondon.bH.M.S.O.c1972  ax, 138p.: ill.  aAtomic medicine;Medical aspects of high-energy radiations.;Natural science;Radiology and Atomic Energy;Radiation hazards  c298d298