6Bssett CA. The development and application of pulsed electromagnetic fields for ununited fracture, s and arthrodeses[J]. Clin Plast Surg, 1985,12 (2) :259 - 234.
7Yamamoto Y, Ohsaki Y, Goto T, et al. Effects of static magnetic fields on bone formation in rat osteoblast cultures[ J]. J Dent Res,2003,82(120) : 962 - 966.
8Kotani H, Kawaguchi H, Shimoaka T, et al. Strong stade magnetic field stimulates bone formation to define orientation in vitro and in vivo[ J ]. J Bone Min Res,2002, 17(10) : 1814 - 1823.