1Mehler, Mark F, Mabie, et al. Bone morphogenetic proteins in the nervous system. Trends in Neurosciences, 1997, 20 (7): 309.
2Ikegame M, Ishibashi O, Yoshizawa T, et al. Tensile stress induces bone morphogenetic protein 4 in preosteoblastic and fibroblastic cells, which later differentiate into osteoblasts leading to osteogenesis in the mouse calvariae in organ culture. J Bone Miner Res, 2001, 16: 24.
3Bruder S P, Jaiswal N, Ricalton N S, et al. Mesenchymal stem cells in osteobiology and applied bone regeneration. Clin Orthop, 1998, 355(3): 247.