Case-control study on risk factors of recurrent aphthous ulcer
LIN Qi, XIE Yun-de, XIE Qing-qi, ZHENG Xin, CUI Xiao-wei, LAI Fu-xuan, ZHANG Zhi-xing, MA Zhong-xiong
Shanghai Journal of Stomatology . 2019, (1): 53 -56 .  DOI: 10.19439/j.sjos.2019.01.010