1. Medicare reimbursement for physician services: the current status of local payment policy;Allen;J Am Coll Radiol,2005
2. Medicare Prescription Drug, Improvement and Modernization Act of 2003 §911(a)(1).
3. Program Integrity Manual (PIM). Chap. 13 § 7.4.1, rev. 71, 04-09-04.
4. Program Integrity Manual (PIM). Chap. 1 § 1.4, rev. 174, 10-01-06.
5. Tax Relief and Health Care Act of 2006 § 302 (h)(1-8).