Jefferson Surgeons Turning to Light Therapy for Advanced Lung Cancer Surgeons at Thomas Jefferson University Hospital in Philadelphia are finding success by combining light-based cancer therapy with surgery to treat patients with advanced lung cancer that has spread within the chest. While the number of patients treated to date is small, many patients are living three to four times longer than did those patients who did not receive the therapy http://www.kcc.tju.edu/Clinical/kccnews/FriedbergPDT.htm