What follows is an opinion from a United States Court of Appeals. Your task is to identify the federal agency (if any) whose decision was reviewed by the court of appeals. If there was no prior agency action, choose "not applicable".

Opinion:
Leve F. SLIGER, Appellant, v. Elliot RICHARDSON, Secretary of Health, Education and Welfare, Appellee.
No. 15093.
United States Court of Appeals, Fourth Circuit.
Feb. 23, 1971.
Robert T. Winston, Jr., Norton, Va., on the brief for appellant.
William G. Davis, Asst. U. S. Atty., on the brief for appellee.
Before BOREMAN, BRYAN and WINTER, Circuit Judges.
PER CURIAM:
After a careful review of the briefs, appendices, and the record, we dispense with oral argument and affirm for the reasons stated in the district court’s opinion, reported at 315 F.Supp. 1093 (W.D.Va.1970).
Affirmed.

Question: What federal agency's decision was reviewed by the court of appeals?

Choices:
Benefits Review Board
Civil Aeronautics Board
Civil Service Commission
Federal Communications Commission
Federal Energy Regulatory Commission
Federal Power Commission
Federal Maritime Commission
Federal Trade Commission
Interstate Commerce Commission
National Labor Relations Board
Atomic Energy Commission
Nuclear Regulatory Commission
Securities & Exchange Commission
Other federal agency
Not ascertained or not applicable

Answer: 14