They found a high and specific expression of NOL4 in more tissue blocks and micro tissue array of SCLC patients, and they are currently analyzing the results based on clinical history of SCLC patients (personal communication with Dr. Dong-Hoon Shin and Dr. Jung-Hee Lee, who are working at the Department of Pathology, Yangsan Pusan National University Hospital). This evidence concerns the gene NOL4 and small cell lung carcinoma.