Epidemiological investigation of chewing fresh or dried betel nut and oral mucosal disease
Du Yongxiu, Sun Dongye, Jian Xinchun, Mao Qiuhua, Cheng Yanan, Xu Pu
West China Journal of Stomatology . 2016, (4): 391 -394 .  DOI: 10.7518/hxkq.2016.04.014