Among the 377 DTC patients, 372 (98.6%) patients were diagnosed as PTC and 4 (1.1%) patients as FTC, the diagnosis of the remaining one was not mentioned in the original article but a Tg positive staining was found on the surface of tumor cells which indicated that the tumor cells were well differentiated. The gene discussed is TG; the disease is thyroid cancer, nonmedullary, 2.