@misc{indiciae74fd22255233,
  title = {Letter: Selective IgA deficiency.},
  author = {L M Dalderup and S C Freni and G Bras and F B Bronckhorst},
  year = {1976},
  url = {https://pubmed.ncbi.nlm.nih.gov/55550/},
  note = {Source identifier: 55550}
}