Epidemiological distribution of high-risk human papillomavirus genotypes and associated factors among patients with esophageal carcinoma at Bugando medical center in Mwanza, Tanzania

坦桑尼亚姆万扎布甘多医疗中心食管癌患者中高危型人乳头瘤病毒基因型的流行病学分布及相关因素