@misc{indiciaef03087708fc5,
  title = {Gastrointestinal citrate absorption in nephrolithiasis},
  author = {Fegan, J. and Khan, R. and Poindexter, J. and Pak, C. Y.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/20050000719},
  note = {Source identifier: 20050000719}
}