@misc{indiciae713ba618acb7,
  title = {Glutamine synthetase gene evolution: a good molecular clock.},
  author = {G Pesole and M P Bozzetti and C Lanave and G Preparata and C Saccone},
  year = {1991},
  doi = {10.1073/pnas.88.2.522},
  url = {https://pubmed.ncbi.nlm.nih.gov/1671172/},
  note = {Source identifier: 1671172}
}