@article{fitzgerald_miller_sykes_1975, 
  title={Treponema pallidum (Nichols strain) in tissue cultures: cellular attachment, entry, and survival.}, 
  volume={11}, 
  DOI={10.1128/iai.11.5.1141-1146.1975}, 
  publisher={American Society for Microbiology}, 
  author={Fitzgerald, T J and Miller, J N and Sykes, J A}, 
  year={1975}
  }