@misc{indiciaee04850977405,
  title = {Roentgenographic bone density changes in astronauts during representative Apollo space flight.},
  author = {P B Mack and F B Vogt},
  year = {1971},
  doi = {10.2214/ajr.113.4.621},
  url = {https://pubmed.ncbi.nlm.nih.gov/5128124/},
  note = {Source identifier: 5128124}
}