Evaluation of diagnostic performance of serum pepsinogen Ⅰ, pepsinogen Ⅱ, and their ratio
ZHANG Jie, LIU Yi-jing, WANG Zhen-hua
上海交通大学学报（医学版） . 2015, (6): 860 .  DOI: 11.3969/j.issn.1674-8115.2015.06.016