@misc{indiciaea72c4fa38a20,
  title = {Selenium and lowered reproductive efficiency in pigs.},
  author = {M J Edwards and W J Hartley and E A Hansen},
  year = {1977},
  doi = {10.1111/j.1751-0813.1977.tb07946.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/612336/},
  note = {Source identifier: 612336}
}