in this study, production, quality control and biodistribution studies of 166ho-zoledronate have been presented as a possible bone marrow ablative agent. ho-166 chloride was produced by thermal neutron irradiation of natural 165ho(no3)3 samples. 166ho-zoledronate complex was prepared by adding the desired amount of zoledronate solution (0.2 ml, 150 mg/ml in 1 m naoh) to appropriate amount of th...