@misc{indiciaec93acbf0709f,
  title = {Interregional differences undermine sperm trend conclusions.},
  author = {J Heinze},
  year = {1998},
  doi = {10.1289/ehp.106-1533212},
  url = {https://pubmed.ncbi.nlm.nih.gov/9867456/},
  note = {Source identifier: 9867456}
}