@misc{indiciaefd8875868737,
  title = {Methods for quantifying mammalian spermatogenesis: a review.},
  author = {W E Berndtson},
  year = {1977},
  doi = {10.2527/jas1977.445818x},
  url = {https://pubmed.ncbi.nlm.nih.gov/324963/},
  note = {Source identifier: 324963}
}