@article{gerlach2007protein,
  title={Protein secretion systems and adhesins: the molecular armory of Gram-negative pathogens},
  author={Gerlach, Roman G and Hensel, Michael},
  journal={International Journal of Medical Microbiology},
  volume={297},
  number={6},
  pages={401--415},
  year={2007},
  publisher={Elsevier}
}