1. 1. Praemer A, Furner S, Rice D. Musculoskeletal Conditions in the United States. Park Ridge, IL: American Academy of Orthopaedic Surgeons; 1992.
2. 2. Praemer A, Furner S, Rice D. Musculoskeletal Conditions in the United States. 2nd ed. Rosemont, IL: American Academy of Orthopaedic Surgeons; 1999.
3. 3. Bassett C. Electrical effects in bone. Sci Am 1965;213(4):18–25.
4. 4. Bassett C, Pawluck R, Becker R. Effects of electric currents on bone formation in vivo. Nature 1964;204:652–4.
5. 5. Bassett C, Becker R. Generation of electric potentials by bone in response to mechanical stress. Science 1962;137:1063–4.