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Wouldn't we have seen a massive spike in head / mouth / throat cancer, though, even if the overall cancer rates had gone down?
by biesnecker 5y ago
Wouldn't we have seen a massive spike in head / mouth / throat cancer, though, even if the overall cancer rates had gone down?
- wizzwizz4 5y agoWe might, if we weren't messing with the “proportion smokers” control variable.