Doi Y, Miyazaki M, Yoshiiwa T, Hara K, Kataoka M, Tsumura H. Manipulation of the anabolic and catabolic responses with BMP-2 and zoledronic acid in a rat femoral fracture model. Bone. 2011 Oct;49(4):777–82. doi: 10.1016/j.bone.2011.07.005. PMID: 21777711.