Serene submitted two abstracts to SNMMI annual meeting June 10-14, 2017, in Denver Colorado.  Abstracts are entitled “A comparison of tissue doses from colloidal Sn-117m, Re-186, Y-90 and Er-169 for radiosynoviorthesis using Monte Carlo simulation,” and “External radiation exposure following Sn-117m colloidal intra-articular injections.”