| Audio | 1 |
| Text | 1 |
| China--Social conditions--20th century | |
| Americans--China | 1 |
| British-American Tobacco Co. (China)--Employees | 1 |
| British-American Tobacco Co. (China)--History | 1 |
| China--History, Military--20th century | 1 |
| Gregory, Quentin | 1 |
| Opium abuse--China | 1 |
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