Smith SM, Castaneda-Sceppa C, O'Brien KO, Abrams SA, Gillman P, Brooks NE, Cloutier GJ, Heer M, Zwart SR, Wastney ME.

Calcium kinetics during bed rest with artificial gravity and exercise countermeasures.

Osteoporos Int. 2014 Sep;25(9):2237-44. doi: 10.1007/s00198-014-2754-x. Epub 2014 May 27.