@misc{indiciaeff4855ed6ce8,
  title = {[On acquired lactose intolerance].},
  author = {W Fischer and J Zapf},
  year = {1965},
  doi = {10.1007/bf01734696},
  url = {https://pubmed.ncbi.nlm.nih.gov/5872346/},
  note = {Source identifier: 5872346}
}