@misc{indiciae365fec7a10a6,
  title = {A higher calling.},
  author = {M K Duval},
  year = {1973},
  doi = {10.1016/0091-7435(73)90001-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/4803321/},
  note = {Source identifier: 4803321}
}