ON REHEARING EN BANC
On rehearing en banc, the panel opinions in United States ex rel. Sheldon v. Allergan Sales, LLC, 24 F.4th 340 (4th Cir. 2022), are vacated, and the judgment of the district court is affirmed by an equally divided court. AFFIRMED
PER CURIAM:
Affirmed by published per curiam order.