@misc{indiciae031e26f498a5,
  title = {Calcium absorbability from spinach.},
  author = {R P Heaney and C M Weaver and R R Recker},
  year = {1988},
  doi = {10.1093/ajcn/47.4.707},
  url = {https://pubmed.ncbi.nlm.nih.gov/3354496/},
  note = {Source identifier: 3354496}
}