@misc{indiciae53b63601846a,
  title = {Changes in serum zinc and copper concentrations after thoracic operation.},
  author = {G G Li and C F Sun and N F Yang and G Z He},
  year = {1988},
  url = {https://pubmed.ncbi.nlm.nih.gov/3217421/},
  note = {Source identifier: 3217421}
}