@misc{indiciae9ac2d79122f1,
  title = {Practical problems for HBSAg subtyping.},
  author = {P V Holland},
  year = {1976},
  doi = {10.1159/000398977},
  url = {https://pubmed.ncbi.nlm.nih.gov/61007/},
  note = {Source identifier: 61007}
}