@misc{indiciaef4b4142d753e,
  title = {Orphan anxiety.},
  author = {J R Walker and G F Koob},
  year = {1997},
  doi = {10.1073/pnas.94.26.14217},
  url = {https://pubmed.ncbi.nlm.nih.gov/9405592/},
  note = {Source identifier: 9405592}
}