@misc{indiciae37ba14f2836e,
  title = {Cold urticaria associated with C4 deficiency and elevated IgM.},
  author = {C T Stafford and D M Jamieson},
  year = {1986},
  url = {https://pubmed.ncbi.nlm.nih.gov/3963523/},
  note = {Source identifier: 3963523}
}