@misc{indiciae5e21ed070d9e,
  title = {The checkerboard tissue block. An improved multitissue control block.},
  author = {H Battifora and P Mehta},
  year = {1990},
  url = {https://pubmed.ncbi.nlm.nih.gov/2232717/},
  note = {Source identifier: 2232717}
}