Serene attended the Society of Nucelar Medicine and Molecular Imaging Annual Meeting in Denver, Colorado, where two presentations were accepted: a poster entitled “External radiation exposure following Sn-117m colloid intra-articular injections” and a presentation entitled “A comparison of tissue doses from colloidal Sn-117m, Re-186, &-90, and Er-169 for radiosynoviorthesis using Monte Carlo simulation.”