@misc{indiciaeb6687ffafaba,
  title = {Concomitant immunity in schistosomiasis.},
  author = {P Hagan and H A Wilkins},
  year = {1993},
  doi = {10.1016/0169-4758(93)90149-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/15463654/},
  note = {Source identifier: 15463654}
}