Chemistry of 4-nitroquinoline 1-oxide and related compounds / Y. Kawazoe -- Metabolism of 4-nitroquinoline 1-oxide and related compounds / Mariko Tada -- Molecular biology of 4-nitroquinoline 1-oxide in the prokaryotic system / Sohei Kondo -- Actions of 4-nitroquinoline 1-oxide on eucaryotic cells: molecular and cellular studies / Mituo Ikenaga and Hiraku Takebe -- In vitro carcinogenesis by 4-nitroquinoline 1-oxide and related compounds / Toshio Kuroki -- In vivo carcinogenesis of 4-nitroquinoline 1-oxide and related compounds / Nobuyuki Ito.