@misc{indiciaeca695975765d,
  title = {Clinical studies with MTA.},
  author = {A H Calvert and J M Walling},
  year = {1998},
  doi = {10.1038/bjc.1998.752},
  url = {https://pubmed.ncbi.nlm.nih.gov/9717989/},
  note = {Source identifier: 9717989}
}