After watching a steady increase in my PSA numbers for several years, had the biopsy and diagnosed with very early prostate cancer. Decided on the radioisotope seed implant procedure, rather than external radiation therapy, due to not wanting to commit to four or five weeks, five days a week, of traveling and waiting, and exposing more of my body to the radiation. Procedure was fast, almost totally painless, and effective. Due to my age I use 100 to 140 mg of V for L1 or 2, Trimix injections when planning L3. Still works even though not as much volume as it used to be, but still feels good!