I have 21 years of experience, and specialize in the field of urology with specific knowledge in the areas of oncology, benign prostatic hyperplasia (BPH), and renal calculi. I have published on such topics as urologic oncology related topics, benign prostatic hyperplasia (BPH), and urologic stone disease. I have a patent on a medical device using lasers in the prostate gland. I have acted as an expert witness in a number of medico legal cases involving urologic issues.