Yoon, S. K., Choi, S. W., Lee, C. D., Sun, H. S., Park, D. H., Kim, B. S., . . . Kim, S. M. (1987). Pure Signet Ring Cell Type Early Gastric Carcinoma with Extensive Lymph Node Metastases: —A Case Report—. Korean J Intern Med.

Yoon, Seung Kew, Sang Wook Choi, Chang Don Lee, Hee Sik Sun, Doo Ho Park, Boo Sung Kim, Mi Kyung Jee, Seok Jin Gang, e Sun Moo Kim. "Pure Signet Ring Cell Type Early Gastric Carcinoma With Extensive Lymph Node Metastases: —A Case Report—." Korean J Intern Med 1987.

Yoon, Seung Kew, et al. "Pure Signet Ring Cell Type Early Gastric Carcinoma With Extensive Lymph Node Metastases: —A Case Report—." Korean J Intern Med 1987.