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. 2016 Apr 18;95(15):e3311. doi: 10.1097/MD.0000000000003311

FIGURE 3.

FIGURE 3

Relationship between spatial distribution and risk factor exposure. (A) The circumferential distribution and (B) longitudinal distribution of early ESCNs in patients with or without a history of head and neck cancer. (C) The association between circumferential distribution and alcohol, betel nut, cigarette exposure. (D) The association between longitudinal distribution and alcohol, betel nut, cigarette exposure. ABC = alcohol, betel nut, cigarette, ESCN = esophageal squamous cell neoplasias, HNSCC = head and neck squamous cell carcinoma.