American Medical Association v. United States Medical Society of the District of Columbia

Messrs. Seth W. Richardson and William E. Leahy, both of Washington, D.C., for petitioners.

Messrs. Thurman W. Arnold, Asst. Atty. Gen., and John Henry Lewin, Sp. Asst. to Atty. Gen., for respondent.

[Argument of Counsel from pages 520-525 intentionally omitted]

Mr. Justice ROBERTS delivered the opinion of the Court.