@misc{indiciae1ffacac5c1d2,
  title = {AIDS vaccine: present problems and future perspectives.},
  author = {J Ennen and S G Norley and R Kurth},
  year = {1992},
  doi = {10.1007/bf02591425},
  url = {https://pubmed.ncbi.nlm.nih.gov/1467536/},
  note = {Source identifier: 1467536}
}