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The Lehigh Valley Chiropractic Society published this ad in 1971 in the a newspaper in Allentown, Pennsylvania. The ad claims:
In the 1960s and 1970s, ads as blatant as this were commonplace throughout Pennsylvania (and probably throughout the United States). In Allentown, many protests persuaded the newspaper's executive editor to ask several experts he trusted to evaluate ads that his paper had published. After receiving a very unfavorable report, he set up a policy that resulted in no more chiropractic ads for about ten years.
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