Control of Dopant Distribution in Yttrium-Doped Bioactive Glass for Selective Internal Radiotherapy Applications Using Spray Pyrolysis oleh Abadi Hadush Tesfay, Yu-Jen Chou, Cheng-Yan Tan, Fetene Fufa Bakare, Nien-Ti Tsou, E-Wen Huang, Shao-Ju Shih