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H. J. L. M.
Ann Intern Med. 1951;35(1):249-256. doi:10.7326/0003-4819-35-1-249
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Four hundred million common colds, causing a work loss of one hundred million days, are estimated to occur each year in the United States. This is said to represent a wage loss of approximately two billion dollars. The common cold is therefore a problem of great importance from the points of view of both morbidity and economics—not to mention personal inconvenience and discomfort.

As there are few individuals who enjoy immunity to this disease, the "cold cure" is naturally a subject of catholic appeal and therefore a fruitful field for advertising. Supposed cures in the past have monotonously come and


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