Greiner, Stefan H, et al. “Local Application of Zoledronic Acid Incorporated in a poly(D,L-Lactide)-Coated Implant Accelerates Fracture Healing in Rats”. Acta Orthopaedica, vol. 79, no. 5, Jan. 2008, pp. 717-25, doi:10.1080/17453670810016768.