1990
In Wilk v. American Medical Association, a federal anti-trust case brought by chiropractor Chester A. Wilk and co-plaintiffs against the AMA and 10 co-defendants, the 7th District Court ruled against the AMA, finding it in violation of paragraph 1 of the Sherman Act by conducting an illegal boycott. The verdict was affirmed by the U.S. Court of Appeals on 7 February 1990.