@misc{indiciae7a4ab4e8811c,
  title = {Problem-based learning.},
  author = {C E Engel},
  year = {1998},
  doi = {10.3109/17453059809063130},
  url = {https://pubmed.ncbi.nlm.nih.gov/10505351/},
  note = {Source identifier: 10505351}
}