Columbia subject headings:
Emigration and immigration law--United States.
Human rights--China.
Political persecution--China.
Visas--United States.
Harvard subject headings:
Emigration and immigration law--United States.
Human rights--China
Political persecution--China.
Visas--United States.
Princeton subject headings:
Emigration and immigration law--United States.
Human rights--China.
Political persecution--China.
Visas--United States.