@misc{indiciae9d3889178728,
  title = {Physiological hyperparathyroidism in human lactation.},
  author = {R W Retallack and M Jeffries and G N Kent and N E Hitchcock and D H Gutteridge and M Smith},
  year = {1977},
  doi = {10.1007/bf02064055},
  url = {https://pubmed.ncbi.nlm.nih.gov/912515/},
  note = {Source identifier: 912515}
}