@misc{indiciaeffdefa980deb,
  title = {Transfer factor in treating hepatitis B (cont.)},
  author = {M Sano and T Takeuchi and M Adachi and Y Tamai and K Ito},
  year = {1977},
  doi = {10.1056/nejm197701062960120},
  url = {https://pubmed.ncbi.nlm.nih.gov/830276/},
  note = {Source identifier: 830276}
}