title: Changes in primary liver and esophageal cancer rates among black goldminers, 1964-1981.
mesh_terms: D000328:Adult; D004938:Esophageal Neoplasms / Q000453:epidemiology*; D006046:Gold; D006801:Humans; D008113:Liver Neoplasms / Q000453:epidemiology*; D008297:Male; D008906:Mining; D009073:Mozambique; D013019:South Africa
chemical_list: D006046:Gold