Jin-Chuan Sheu, Guan-Tarn Huang, Ling-Na Shih, Wen-Chen Lee, Huey-Chi Chou, Jin-Town Wang, Po-Huang Lee, Ming-Yang Lai, Chang-Yi Wang, Pei-Ming Yang, Hsuan-Shu Lee, Ding-Shinn Chen,
Hepatitis C and B viruses in hepatitis B surface antigen-negative hepatocellular carcinoma. Gastroenterology. ,vol. 103, pp. 1322- 1327 ,(1992) ,
10.1016/0016-5085(92)91523-7