The article (Yang R, Wang J, Zhang H. Dosimetric study of Cs-131, I-125, and Pd-103 seeds for permanent prostate brachytherapy. Cancer Biother Radiopharm 2009;24:701-705) by Yang Ruijie, the first author from Radiation Oncology Department of PUTH, and Wang Junjie, responsible author and director of Radiation Oncology Department of PUTH, was quoted by American Brachytherapy Society consensus guidelines on thoracic brachytherapy for lung cancer, which was issued recently.