1. Sherman Antitrust Act, 15 USC §§ 1, 2 (2004).
2. Economic credentialling and exclusive contracts;Feinstein;Health Lawyer,1996
3. Arizona v Maricopa County Medical Society, 457 US 332 (1982).
4. National Society of Professional Engineers v United States, 435 US 679 (1978).
5. Jefferson Parish Hospital District No. 2 v Hyde, 466 US 2 (1984).