@misc{indiciae62dd0b4032fe,
  title = {Recertification: update and future issues.},
  author = {B Grenell and I Studin},
  doi = {10.1016/0039-6257(90)90049-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/2396190/},
  note = {Source identifier: 2396190}
}