@misc{indiciae387130a6a9ce,
  title = {Vitamins and the immune system.},
  author = {W R Beisel},
  year = {1990},
  doi = {10.1111/j.1749-6632.1990.tb00127.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/2193584/},
  note = {Source identifier: 2193584}
}