1. Arya M, Paloski WH, Young LR (2007) Centrifugation protocol for the NASA Artificial Gravity-Bed Rest Pilot Study. J Gravit Physiol 14:5–8
2. Bishop PA, Lee SM, Conza NE, Clapp LL, Moore AD, Williams WJ, Guilliams ME, Greenisen MC (1999) Carbon dioxide accumulation, walking performance, and metabolic cost in the NASA launch and entry suit. Aviat Space Environ Med 70:656–665
3. Buckey JC Jr, Lane LD, Levine BD, Watenpaugh DE, Wright SJ, Moore WE, Gaffney FA, Blomqvist CG (1996) Orthostatic intolerance after spaceflight. J Appl Physiol 81:7–18
4. Bungo MW, Charles JB, Johnson PC Jr (1985) Cardiovascular deconditioning during space flight and the use of saline as a countermeasure to orthostatic intolerance. Aviat Space Environ Med 56:985–990
5. Burge CM, Skinner SL (1995) Determination of hemoglobin mass and blood volume with CO: evaluation and application of a method. J Appl Physiol 79:623–631