Historical background of studies on environmental chemical carcinogenesis in Japan and recent progress in toxicology of carcinogens.
D015112:4-Nitroquinoline-1-oxide; D015127:9,10-Dimethyl-1,2-benzanthracene; D000818:Animals; D002273:Carcinogens / Q000009:adverse effects; D003033:Coal Tar; D004032:Diet; D004784:Environmental Monitoring; D005511:Food Handling; D049673:History, 20th Century; D006801:Humans; D007564:Japan; D009152:Mutagenicity Tests; D009573:Nitrites; D012878:Skin Neoplasms / Q000139:chemically induced; D013449:Sulfonamides / Q000494:pharmacology
D002273:Carcinogens; D009573:Nitrites; D013449:Sulfonamides; D015112:4-Nitroquinoline-1-oxide; D015127:9,10-Dimethyl-1,2-benzanthracene; C017967:W 7; D003033:Coal Tar