@misc{indiciaef9813905baab,
  title = {Blood donation leads to a decrease in natural killer cell activity: a study in normal blood donors and cancer patients.},
  author = {R L Marquet and M A Hoynck van Papendrecht and O R Busch and J Jeekel},
  year = {1993},
  doi = {10.1046/j.1537-2995.1993.33593255594.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/8488538/},
  note = {Source identifier: 8488538}
}