3 Ryk Ryk C C Koskela Koskela LR LR Thiel Thiel T T Wiklund Wiklund NP NP Steineck Steineck G G Schumacher Schumacher MC MC Outcome after BCG treatment for urinary bladder cancer may be influenced by polymorphisms in the NOS2 and NOS3 genes Outcome after BCG treatment for urinary bladder cancer may be influenced by polymorphisms in the NOS2 and NOS3 genes Redox biology. This evidence concerns the gene NOS3 and urinary bladder cancer.