RE:Low dose X-ray-Induced PDT - The future of Theralase? Excellent article Eog!anacht! In the past year alone the amount of literature that has been released regarding PDT and our TLD/1433 has been incredible. What is going to be the catalyst that takes us over the finish line? It sounds like we are close and the next few steps could be life-changing. My fingers are crossed that we don't fall through the cracks somehow.