@misc{indiciae73b6f6d314be,
  title = {Tumor angiogenesis: a quantitative method for histologic grading.},
  author = {S Brem and R Cotran and J Folkman},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/4347034/},
  note = {Source identifier: 4347034}
}