@misc{indiciae1375cadad38e,
  title = {Human complement C4 locus is duplicated on some chromosomes.},
  author = {B Olaisen and P Teisberg and R Nordhagen and T Michaelsen and T Gedde-Dahl},
  year = {1979},
  doi = {10.1038/279736a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/450123/},
  note = {Source identifier: 450123}
}