@misc{indiciae2acef524c735,
  title = {Should students in problem-based learning sessions be graded by the facilitator?},
  author = {I L Alpert and R M Perkins and J A Driver and S L Kanter},
  year = {1999},
  doi = {10.1097/00001888-199911000-00023},
  url = {https://pubmed.ncbi.nlm.nih.gov/10587692/},
  note = {Source identifier: 10587692}
}