@misc{indiciae00b9eea167cf,
  title = {Effect of intermittent standing and walking on physiological changes induced by head-down bed rest},
  author = {Vernikos, J. and Ludwig, D. A. and Ertl, A. C. and Wade, C. E. and Keil, L. and OHara, D.},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/20010122937},
  note = {Source identifier: 20010122937}
}