Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 17 · Episode 5 ·
The Cancer Detectives of Lin Xian
Documentary film on cancer research in the remote Chinese valley of Lin Xian where the population suffers more than 100 times the incidence of oesophagal cancer than normal.
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Episode 5 of season 17 of Horizon: “The Cancer Detectives of Lin Xian”. Aired 1980-02-18. Watch it online free on ZapFlix.