Upvoted - I know it hard but what were the approx proportions of this as in comparing numbers of effected to non effected?
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Upvoted - I know it hard but what were the approx proportions of this as in comparing numbers of effected to non effected?
No, that would be nearly impossible, many of these men are already dead, no way of knowing if the exposure killed them or they had natural deaths, others emigrated etc.