Final answer:
The Wilk case resulted in the AMA having to inform medical doctors that professional association with chiropractors is ethical, reversing its previous stance.
Step-by-step explanation:
One of the outcomes of the Wilk case was that the American Medical Association (AMA) had to inform all medical doctors that it is ethical for physicians to associate professionally with chiropractors. The AMA's previous policy, which was found to be in violation of antitrust laws, had effectively restrained trade by discouraging medical doctors from interacting with chiropractors. After the conclusion of the Wilk case, or Wilk et al. v. AMA et al., the AMA was mandated to create and distribute policy statements notifying physicians that it was no longer unethical to associate with chiropractors and that such cooperation was encouraged to advance patient care.