@misc{indiciaeee503d8cdff3,
  title = {Calcium absorption and achlorhydria.},
  author = {R R Recker},
  year = {1985},
  doi = {10.1056/nejm198507113130202},
  url = {https://pubmed.ncbi.nlm.nih.gov/4000241/},
  note = {Source identifier: 4000241}
}