1. Bone atrophy;Allison;Surgery Gynec. Obstet.,1921
2. Bone. Hypodynamics and Hypogravics;Birge,1968
3. Effects of training and disuse on connective tissue;Booth,1975
4. A standard test for laboratory animal bone;Burstein;J. Biomechanics,1971
5. Bone resorption and mineral excretion in rats during spaceflight;Cann;Am. J. Physiol.,1981