My primary research interests are cancers of the genito-urinary tract. One of my research interests has been how to develop an individualized management plan (definitive treatment vs. active surveillance) on the basis of tumor characteristics for patients with early prostate cancer. Another area of my focus is how to improve the efficacy of radiotherapy as a primary treatment for prostate cancer or a salvage treatment for recurrent prostate cancer after surgery. Other areas of my research effort involve the utilization of radiotherapy for muscle-invasive bladder cancer and the optimization of the management of testicular seminoma. These efforts usually entail developing, conducting, and analyzing clinical studies.