Two new Escherichia coli o antigens, o162 and o163, and one new h antigen, h56. withdrawal of h antigen h50.

@article{rskov1975TwoNE,
  title={Two new Escherichia coli o antigens, o162 and o163, and one new h antigen, h56. withdrawal of h antigen h50.},
  author={Ida \Orskov and Frits \Orskov and Karl A. Bettelheim and Mark Chandler},
  journal={Acta pathologica et microbiologica Scandinavica. Section B, Microbiology},
  year={1975},
  volume={83 2},
  pages={121-4}
}
Three E. coli strains representing strains from faeces of normal persons were established as antigenic test strains of two new O antigens, O162 and O163, and one new H antigen, H56.