BBC NEWS | Americas | In the shadow of Canada’s oil boom
“The incidence rate of bile duct cancer is usually about one in 100,000. Locals say they know of at least five or six cases in a population of about 1,000.”
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BBC NEWS | Americas | In the shadow of Canada’s oil boom
“The incidence rate of bile duct cancer is usually about one in 100,000. Locals say they know of at least five or six cases in a population of about 1,000.”
