@misc{indiciae9fb4ef1418eb,
  title = {Calcium absorption from kale.},
  author = {R P Heaney and C M Weaver},
  year = {1990},
  doi = {10.1093/ajcn/51.4.656},
  url = {https://pubmed.ncbi.nlm.nih.gov/2321572/},
  note = {Source identifier: 2321572}
}