@article{OhgakiLudekeMeieretal.1991,
  author    = {H. Ohgaki and B. I. Ludeke and I. Meier and P. Kleihues and Werner K. Lutz and C. Schlatter},
  title     = {DNA methylation in the digestive tract of F344 rats during chronic exposure to N-methyl-N-nitrosourea},
  year      = {1991},
}