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Continue to ChatBefore man-made chemicals existed to cause it, did cancer already exist? https://healthfaq.com.ng/before-man-made-chemicals-existed-to-cause-it-did-cancer-already-exist/
Before man-made chemicals existed to cause it, did cancer already exist? https://healthfaq.com.ng/before-man-made-chemicals-existed-to-cause-it-did-cancer-already-exist/