Case-control study of 1:1 for detecting risk factors of primary hepatocellular carcinoma, Guangzhou
SONG Shao-fang, SHEN Ji-chuan, LIN Guo-zhen, LI Ke
S China J Prev Med . 2014, (6): 517 -520 .  DOI: 10.13217/j.scjpm.2014.0517