Columbia subject headings:
Harvard subject headings:
AIDS (Disease)--China--Yunnan Sheng--Prevention.
HIV infections--China--Yunnan Sheng--Prevention.
Prostitutes--Health and hygiene--China--Yunnan Sheng.
Safe sex in AIDS prevention--China--Yunnan Sheng.
Princeton subject headings:
AIDS (Disease)--China--Yunnan Sheng--Prevention.
HIV infections--China--Yunnan Sheng--Prevention.
Prostitutes--Health and hygiene--China--Yunnan Sheng.
Safe sex in AIDS prevention--China--Yunnan Sheng.