adverseeffects biologicalassay carcinogens cellmembrane chemicalmutagenesis childrenofatomicbombvictims congresses cytochromep-450enzymesystem drugeffects environmental environmentalhealth environmentaltoxicology experimental genetics geneticvariation healthandhygiene hiroshima-shi history japan laboratorymanuals metabolism methods molecularbiology moleculartoxicology mutagenicitytesting mutagenicitytests mutagens nagasaki-shi neoplasms neurons neurotoxicagents nuclearwarfare pharmacogenetics pharmacology physiologicaleffect qu25 qz202g33161983 radiation radiationgenetics radiationinjuries smoke technique tobacco toxicitytesting toxicology ultrastructure wn620c5361991