@misc{indiciaeb59e0f2001c0,
  title = {Vitamin A and immune function.},
  author = {C E West and J H Rombout and A J van der Zijpp and S R Sijtsma},
  year = {1991},
  doi = {10.1079/pns19910035},
  url = {https://pubmed.ncbi.nlm.nih.gov/1749794/},
  note = {Source identifier: 1749794}
}