@misc{indiciaeb33c97efa2b8,
  title = {A simple holder for efficient mass staining of thin sections for electron microscopy.},
  author = {M Springer},
  year = {1974},
  doi = {10.3109/10520297409116935},
  url = {https://pubmed.ncbi.nlm.nih.gov/4131623/},
  note = {Source identifier: 4131623}
}