@misc{indiciae2174e7fb447e,
  title = {[Decrease of beta1E globulin (C4) concentration in serum in IgG plasmacytoma and Waldenström's macroglobulinemia].},
  author = {W Augener and G Cohnen and E König and G Brittinger},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4133404/},
  note = {Source identifier: 4133404}
}