@misc{indiciae20cc57cc37c5,
  title = {The murine IgG1/IgE class switch program.},
  author = {G Siebenkotten and C Esser and M Wabl and A Radbruch},
  year = {1992},
  doi = {10.1002/eji.1830220723},
  url = {https://pubmed.ncbi.nlm.nih.gov/1623926/},
  note = {Source identifier: 1623926}
}