Columbia subject headings:
Leave of absence--Law and legislation--United States.
Parental leave--Law and legislation--United States.
Sick leave--Law and legislation--United States.
Harvard subject headings:
Leave of absence--Law and legislation--United States.
Parental leave--Law and legislation--United States.
Sick leave--Law and legislation--United States.
Princeton subject headings:
Leave of absence--Law and legislation--United States.
Parental leave--Law and legislation--United States.
Sick leave--Law and legislation--United States.